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Activité de pixellisation RA : Je comprends comment un ordinateur affiche des images. Référence : CSunplugged https://csunplugged.org/en/topics/image-representation/unit-plan/ Activité de PIXELLISATION Comment l’ordinateur affiche des images?

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18 nov 2020 - 7e et 8e

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18 nov 2020 - 7e et 8e

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Minecraft

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Planning for the Hour of Code with your classroom that's gone virtual? Try a CodeByte! Designed to fit smoothly into a distance learning plan, CodeBytes are easy-to-digest, 20 minute interactive lessons that will stream during Computer Science Education Week, December 7-11.

We saw how many people loved taking a Code Break earlier this year. So, we're packaging up that CS goodness into 5 different fun-sized CodeBytes during the week!

Every episode features a new lesson that blends computer science with real-world topics. One day, students will use Dance Party to get creative and express themselves. Another day, they'll explore environmental sustainability with Artificial Intelligence.

While our live episodes have already taken place, you can still view the recordings and try the activities.

CodeBytes are great for:

Students with varying access to technology. Participants can tune-in and interact whether they have a laptop, tablet, or smartphone!

Young students who may not be ready for fully self-led Hour of Code activities.

Older students who want to engage in a group lesson.

Parents and caretakers looking to supplement their child's learning at home.

Educators looking for a simple, pre-planned way to bring the Hour of Code to their virtual classrooms.

Stay in the know! Join our mailing list to receive Code.org updates and be the first to learn of new resources for at home learning.

Lessons are created and led by our very own Code.org staff, many of whom were teachers themselves previously! This means you don't need any additional resources or lesson plans in order to organize a fun and educational Hour of Code event to your class even when they are participating from home. All you and your students have to do is tune-in!

All of our live episodes have taken place. However, recordings can be found below or you can download them here.

Episode 1

Monday, December 7th

Recommended for grades 6-12

American Sign Language (ASL) is a way to communicate without speaking. We'll be training a computer to read sign language with our own images of ASL letters. Teachable Machine and AI for Oceans will be used during this lesson.

Episode 2

Episode 3

Episode 4

Episode 5

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Planning for the Hour of Code with your classroom that's gone virtual? Try a CodeByte! Designed to fit smoothly into a distance learning plan, CodeBytes are easy-to-digest, 20 minute interactive lessons that will stream during Computer Science Education Week, December 7-11. We saw how many people loved taking a Code Break earlier this year.

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MA PREMIÈRE APPLICATION MOBILE avec Code.org

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MA PREMIÈRE APPLICATION MOBILE avec Code.org

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MA PREMIÈRE

APPLICATION MOBILE

Avec Code.org

Ma première application mobile(pour téléphone portable)

Nous utiliserons le site gratuit Code.org pour créer une classe, distribuer des cours, des leçons et des tâches pour nous lancer dans la création d'applications. Venez apprendre à enseigner comment créer, remixer et partager des applications mobiles.

MENU

Créer un compte - Code.org

Suivre le mini cours d'intro

Pourquoi ?

Essayer APP LAB

Consulter les ressources

Créer une classe

Remixer une application

Pourquoi ?

Créer une application mobile en classe.

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MA PREMIÈRE APPLICATION MOBILE Avec Code.org Ma première application mobile(pour téléphone portable) Nous utiliserons le site gratuit Code.org pour créer une classe, distribuer des cours, des leçons et des tâches pour nous lancer dans la création d'applications. Venez apprendre à enseigner comment créer, remixer et partager des applications mobiles.

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à travers mon masque avec

J'EXPRIME MES ÉMOTIONS

Lors de cet atelier ludique, les participants apprendront à programmer leur Micro : Bit afin de présenter différentes émoticons afin de représenter leurs émotions à travers leur masque. Venez apprendre à illuminer vos cours de sourires numériques.

J'exprime mes émotions à travers mon masque avec Micro : Bit

Niveau : Intermédiaire - J'ai déjà utilisé et programmé un Micro : Bit

Exemple:

Simulateur

Le code Derrière mes émotions

À toi deCoder !

https://makecode.microbit.org/

MERCI !

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à travers mon masque avec J'EXPRIME MES ÉMOTIONS Lors de cet atelier ludique, les participants apprendront à programmer leur Micro : Bit afin de présenter différentes émoticons afin de représenter leurs émotions à travers leur masque. Venez apprendre à illuminer vos cours de sourires numériques.

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Fait avec ❤️ dans Microsoft MakeCode for micro:bit.

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LED animated face mask - made with micro:bit and neopixels

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Révision - Géographie

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Lesson resources for teachers

Planning and teaching with the micro:bit

Primary ages 7-11

Complete, editable computing units of work and resources with cross-curricular links for art, science, geography and more, curriculum-linked to England KS2 and Code.org elementary CS Fundamentals.
Search primary lessons
Secondary ages 11-14

Units of work with downloadable, editable resources covering computing fundamentals through to cyber security, cryptography and creative design projects, curriculum-linked to England KS3.
Search secondary lessons

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The BBC micro:bit: the pocket-sized computer transforming digital skills learning.

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Gr 4/5/6 Webinar: Coding in the Junior Grades [MP4]

Welcome to this webinar about coding in the mathematics curriculum. We will be taking you through the pedagogy and social emotional learning skills that coding brings to your classroom as well as the lessons that have been created as supports for Ontario teachers in the Junior grades.
NOTE: This recording does not yet contain the Q&A section - those will be added soon from all the recordings with captioning.

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Gr 4/5/6 Webinar: Coding in the Junior Grades [MP4] Welcome to this webinar about coding in the mathematics curriculum. We will be taking you through the pedagogy and social emotional learning skills that coding brings to your classroom as well as the lessons that have been created as supports for Ontario teachers in the Junior grades.

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Intro to App Lab

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Anyone can learn computer science. Make games, apps and art with code.

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Télécharger, explorer et jouer avec vos élèves dans notre monde STIAM Viamonde

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Explorez plus de 400 leçons comportant tout ce dont vous avez besoin en termes d'ensembles et d'instructions de montage. Tout ce dont vous avez besoin pour proposer un cours génial.

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Plans de cours STEAM faciles à utiliser pour tous les âges | Éducation LEGO®

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Apportez un apprentissage pratique à votre classe avec les plans de cours LEGO® Education. Trouvez tout ce dont vous avez besoin pour créer un excellent cours en utilisant des ressources conformes aux normes.

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Code the Sense HAT in Your Browser!

New from Trinket and the Raspberry Pi Foundation: Explore Your World with Sensors and Python

Did you know? There's a Sense HAT orbiting the earth in the International Space Station. Check out astro-pi.org to learn more.

Try out some of the example Python programs below to see what the Sense HAT can do. You can use the Sense HAT features from your own Python trinkets by typing import sense_hat at the top!

©2015-2020 Trinket

About Us

Support

Legal

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New from Trinket and the Raspberry Pi Foundation: Explore Your World with Sensors and Python Did you know? There's a Sense HAT orbiting the earth in the International Space Station. Check out astro-pi.org to learn more. Try out some of the example Python programs below to see what the Sense HAT can do.

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Pixilart - Free Online Art Community and Pixel Art Tool

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Pixilart - Free Online Art Community and Pixel Art Tool

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Pixilart, free online drawing editor and social platform for everyone. Create game sprites, make pixel art, animated GIFs, share artwork and socialize online.

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Your tiny, dual-display, desktop computer

...and robot brains, smart home hub, media centre, networked AI core, factory controller, and much more

Completely upgraded, re-engineered
Faster, more powerful

From $35

You'll recognise the price along with the basic shape and size, so you can simply drop your new Raspberry Pi into your old projects for an upgrade; and as always, we've kept all our software backwards-compatible, so what you create on a Raspberry Pi 4 will work on any older models you own too.

Your new desktop computer

The speed and performance of the new Raspberry Pi 4 is a step up from earlier models. For the first time, we've built a complete desktop experience. Whether you're editing documents, browsing the web with a bunch of tabs open, juggling spreadsheets or drafting a presentation, you'll find the experience smooth and very recognisable - but on a smaller, more energy-efficient and much more cost-effective machine.

You will need

A 15W USB-C power supply - we recommend the official Raspberry Pi USB-C Power Supply

A microSD card loaded with NOOBS, the software that installs the operating system (buy a pre-loaded SD card along with your Raspberry Pi, or download NOOBS to load a card yourself)

Cables to connect to one or two displays via Raspberry Pi 4's micro HDMI ports

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Buy a Raspberry Pi 4 Model B - Raspberry Pi

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Your tiny, dual-display, desktop computer ...and robot brains, smart home hub, media centre, networked AI core, factory controller, and much more You'll recognise the price along with the basic shape and size, so you can simply drop your new Raspberry Pi into your old projects for an upgrade; and as always, we've kept all our software backwards-compatible, so what you create on a Raspberry Pi 4 will work on any older models you own too.

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In this unit and its lesson plans the word image is used to refer to what is displayed on a computer screen or display at any time. It includes everything seen on a screen, such as videos, websites, apps, ...

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In this unit and its lesson plans the word image is used to refer to what is displayed on a computer screen or display at any time. It includes everything seen on a screen, such as videos, websites, apps, ...

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Squeezing pictures into codes - CS Unplugged

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Squeezing pictures into codes - CS Unplugged

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What you need

A pencil (ideally 2B or heavier), or a dark pen, felt-tip marker or dark crayon. A pencil is easier in case you want to erase mistakes.

Paper with a grid on it - squares should be about 2mm to 5mm (about 1/8 to 1/4 inches); the grid squares should be easy to colour in for the type of pencil or pen you are using. A grid of 20 by 20 squares will be enough for the examples below; a larger one will be needed for the challenges. Options include:

Printing from the PDF pages here

Use "quad paper" or "graph paper"

Draw your own grid using a ruler and pencil

Print or write out the codes for "Picture 1" from this page (it has codes for 4 different pictures on it)

Skills needed

Reading numbers and counting up to about 20, colouring grid squares

Key question

If pictures are made of millions of pixels (mega-pixels), how can they be represented efficiently?

Activity steps

After completing Picture 1, you could try Pictures 2 to 4. The codes are here.

As a follow-on activity, you could use some blank grid paper to draw your own picture, and code it using numbers to give to someone else to decode.

Inside the computer

The small squares that you are using are the basis of most digital pictures - they are called "picture elements", or "pixels" for short. A good quality photo or video can have millions of pixels in it; a million pixels is called a "megapixel", and often the number of megapixels is used to indicate the quality of a camera.

The idea of coding a run of the same colour with a number is called "run-length" coding. It can significantly reduce the amount of space needed to store the image on a computer, or the time needed to send it over a network. Run-length coding works particularly well for simple pictures that have only a few colours in them. It is the basis of sending black and white scans on fax machines, and in more recent times, variations of this idea are used in JPG files of photographs to save space. Run-length coding meant that fax transmissions would typically transmit 7 times faster than if every pixel was sent separately, because long runs of the same colour are common in high resolution scans. The general idea of looking for patterns in a file and replacing them with smaller codes is called data compression, and this is used to reduce the space that files take to store (such as photos and music on a mobile phone), and to make them faster to transmit (such as digital TV and online videos).

More information

There's an online run-length activity here where you can draw your own image, or put in your own codes and see them decoded.

You can find more information on how compression works here.

Often run length coding will include the white pixels at the end of a line as an extra number; by doing this all the numbers can be written as one long list. This means that as long as you know the width of the image, the code doesn't have to be broken up into lines, and so it's just a whole lot of numbers, which are very easy to represent on a computer.

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A pencil (ideally 2B or heavier), or a dark pen, felt-tip marker or dark crayon. A pencil is easier in case you want to erase mistakes. Paper with a grid on it - squares should be about 2mm to 5mm (about 1/8 to 1/4 inches); the grid squares should be easy to colour in for the type of pencil or pen you are using.

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Neopixel LED Face Mask : 23 Steps (with Pictures) - Instructables

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Neopixel LED Face Mask : 23 Steps (with Pictures) - Instructables

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Introduction: Neopixel LED Face Mask

Hi everyone, in this Instructable I'm going to show you how to make an animated face mask using WS2812b LEDs (Aka Neopixels). That description doesn't really do it justice, so go check out the video above! Please note that many of the animations use randomly chosen colors, so you'll get different effects each time. I thought this would be fun to wear around during the current pandemic while also helping to keep other people safe. The mask fully covers your mouth and nose and while remaining easy to breath through. Obviously it's not medically rated, but it should capture any moisture you exhale, and so should be safe to wear while out and about. Just to be certain you are keeping yourself and others safe, I suggest wearing a normal cloth mask underneath mine. This also helps keep the mask clean, as you're basically limited to lightly soaking the back of the mask with soapy water otherwise (or using a UV light for straight disinfection).

I should also add that the LEDs are not super visible in direct sunlight, but they certainly are in any shade or indoors.

The mask uses 104 WS2812b LEDs, assembled from sections of commonly available 144 LEDs/m LED strip. WS2812b's are individually addressable, meaning that you control the color of each led. This lets you create almost any effect you can imagine (as long as you can code it). If you're not sure what effects you might like, or don't want to write a bunch of code, don't worry; I've written code to control the mask, including 41 different effects, which you can control using a series of buttons. The LEDs are controlled using a Wemos D1 Mini, an Arduino compatible micro-controller featuring an ESP8266 as the processor. This gives you plenty of memory and power to run as many effects as you'd like. It also gives you access to WiFi functionality (although not currently implemented in my code). The mask is powered externally via a 1S LiPo cell. Although the mask can run for a long time on just one cell, by keeping the cell external, you can easily swap in a fresh one. The all the components are mounted on custom PCB's (except the LED strip).

You have two options when assembling the mask controller:

1. Follow the steps in this Instructable using a few separate PCB's all designed by me. You will have to do a bit of soldering to wire everything together.

You can find all the PCBs here (Click on the link in Github and there should be a download button on the right hand side) and here (Use 3v3 Reg version: "Gerber_We_Lipo Combo_W_LLC_3v3_reg" in the file name)

and the 3D Printed parts here.

2. Use a single, all-in-one PCB designed by me to mount all the components. This is easier to assemble than option 1, but I have not tested the board myself. I designed the board after assembling the original mask. I have not built another one, and so I have not tested the board. That said, it is essentially just a combination of the boards from option 1, and so I'm very confident it will work without any issues. It will also give you the option of adding a MAX4466 mic (for audio reactive effects) and a HC-05 Bluetooth breakout board, although my code currently doesn't incorporate either of them. I do not have assembly pictures for you to follow for this option, but the steps mostly match option 1, and I will add notes for option 2 when needed.

You can find the PCB here (Click on the link in Github and there should be a download button on the right hand side): here

and the 3D Printed parts here.

Regardless of which option you choose, both boards will require some SMD soldering, but nothing smaller than 0805, which can be soldered by hand with a fine-tip iron. Finally, you will need access to a 3D printer to make a few mechanical components.

I recommend reading through the whole Instructable to familiarize yourself with the steps and components. This is especially true for option 2 as you'll have to rely on my notes over pictures.

One note: the mask is powered using an external LiPo battery. These batteries can be dangerous if miss-treated. If you do not have any experience with LiPo's I recommend you do some research into them before attempting this build.

If you have any questions, please leave a comment, and I'll get back to you.

Supplies:

(You might be able to find most of the parts for lower cost at places like Aliexpress, Ebay, Banggood, etc)
PCBs:
If you're building option 1 you need to order two PCBs: One Wemos LiPo Charger Combo board and one Triple Flat tactile button board. You can find both these at the Github links above.

If you're building option 2 you just need one PCB: a Wemos LiPo Button Combo board. You can also find it using the Github links above.

If you've never ordered a custom PCB before, it's easy. I briefly go over it in Step 2 of one of my other Instrucable here. As with that Instrucable, all the ordering defaults should be fine for this project.
Electronic Parts:
For Either Option:

Three 6x6x9mm Tactile Push-Buttons: Found Here

One JST-XH 2.5mm 2 Pin Male Connector: Found Here

One JST-XH 2.5mm 3 Pin Male Connector: Found Here

Five JST-XH 2.5mm Crimp Terminals: Found Here

2.54mm Male Headers (can probably improvise with what comes with the Wemos)

One 19 x 6 x 13 Slide Switch (these are pretty common, the actuator should be 4-5mm long): Found here or here

Three SMD 0805 1k Resistors: Found Here

Three SMD 0805 1uf Capacitors: Found Here

Three SMD 0805 100k Resistors: Found Here

One Wemos D1 Mini V3: Found Here

One TP4056 LiPo Charger: Found Here

22Ga Silicone Wire in Various Colors: Found Here

One (or more) 1S LiPo Battery(s). The capacity is up to you, but I'd recommend 850mah as a minimum. You can buy the one I used here or a similar one here. If you buy a different pack you'll have to also design a strap mount to attach it to the mask.

One Female Connector that matches your LiPo's output connector. It'll probably be a red JST connector: Found Here

For Option 1:

One JST-XH 2.5mm 2 Pin Female Connector: Found Here

One JST-XH 2.5mm 3 Pin Female Connector: Found Here

For Option 2:

One Right Angle JST-XH 2.5mm 2 Pin Female Connector: Found Here

One Right Angle JST-XH 2.5mm 3 Pin Female Connector: Found Here

Other Parts:

One Airsoft Mesh Half Mask: Found Here

~40mm of 10mm Dia. heat shrink (any color, optional)

~40mm of 3mm Dia. heat shrink (any color, optional)

One 8mm M2 Screw

300 x 600mm (1x2 Feet) of 2mm LED Foam (Plastazote): Found Here or here or here (US seller). This goes in the front of the mask to diffuse the LEDs. LED foam is great for diffusing, but it can be difficult to find, so shipping may be expensive depending on where you are. As an alternative you can probably use felt or other fabrics with similar results, but be sure to test it first. Helps if it's easy to cut with scissors.I encourage you to experiment, you might find something that works even better than mine.

300 x 600mm (1x2 feet) of dark cloth. I don't have a link for this as I don't remember where I bought it. This is to cover the back of the mask. Any thin fabric should do. Helps if it's easily cut-table with scissors.

Tools:

3D printer + 1.75mm filament

Hot Glue Gun + Hot Glue

Wire strippers

Wire cutters

Crimper for JST terminals: Found Here

Heat gun

Soldering iron w/ fine tip

PH0 screwdriver

Scissors

Small needle-nosed pliers (like for bead work)

Tweezers (for SMD placement/soldering)

Step 1: (Optional) Some Design Notes

These are just some notes on the general design of the mask. Reading this step is optional.

As with all my Instrucables, I wanted to the mask to be fairly easy to assemble, so I mostly tried to use readily available, through-hole parts. After assembling the first mask using a few of my own PCB's, I thought the assembly was a bit too fiddly, and so I designed an all in one PCB to make it easier. However I didn't want to build a whole new mask, and so I don't have pictures using the all-in-one PCB. Hopefully my notes in each of the steps will be enough for everyone.

If you'd like to tweak/view any of the PCBs you can find them here, here, and here

Currently, when it comes to controlling WS2812b LEDs, it's hard to beat esp8266's because they feature far more memory and processing speed than most common Arduino boards, while also being very inexpensive. As a bonus you also get the possibility of wifi.

From the set of common esp8266 breakout boards, the Wemos D1 Mini is my favorite due to its size, availability, ease of programming (it features a ch340g usb to serial chip, so you don't need a boot button for programming) and cost.

The Wemos is a 3.3 volt device, while WS2182b's are 5 volt. In general, this means that you need a logic level converter(LLC) to communicate between the two. However, I have found that you can power both using a 1s LiPo battery (4.2 Volts, 3.3 volts nominal) without the need for an LLC. This is great because LiPo's are ideal for portable devices.

My previous Instrucable used an external power bank as it's power source. This was because there was not enough room for an LiPo on the shades. On the other hand, the mask's straps have plenty of space, so mounting a LiPo was not a problem. This is better because it keeps the mask as an all-in-one package.

The LiPo is charged using a TP4056 breakout board. I use these all the time as they are cheap, common, and offer a decent 1A charging current.

Each of the mask's three buttons have a debounce circuit. Theory on the circuit can be found here. I could have just debounced in software, but I decided it was easier to add a couple of components, and then not have to worry about it at all.

I used silicone wire for most of the wiring on the mask. Silicone wire is more flexible than standard wire, and should withstand any repeated flexing from taking the mask on/off. Eventually it will probably fail, but this may be after many thousands of flexes.

Rather than wire together a bunch of individual LEDs, I used LED strip. Not only does this save on wiring, but it also ensures than the LEDs are evenly spaced. I tried to cram as many LEDs as possible into the mask so I went with the highest density WS2812b LED strip available (144 LEDs/m). However, the strips do need some space around them to conform to the mask properly. The result is that the LEDs are spaced out more horizontally than vertically. This does mean that some animations appear stretched, but overall it's not a huge issue.

Step 2: Mask Assembly Step 1: Add a Diffuser to the Mask

Remove the straps attaching the mask harness to the mask body (you may want to take a picture of the strap setup so you can re-attach it later).

Place the mask on you face as if you were wearing it. Bend the mask so that it conforms to your face's shape comfortably.

Take a section of whatever diffusing material you've chosen (LED foam, felt, cloth, etc) and glue it to the outer rim of the mask. You'll need to push the diffuser into the mask and probably trim it in certain places to get it to conform the the mask's shape. The closer you can get the material to the mask's outer mesh the better. Be especially careful of the nose area; you want to get the material as deep as possible to ensure there will be enough room for your nose once the mask is finished.

Your choice of glue will depend on your diffusing material, but hot-glue worked fine for me. I recommend only gluing around the outer rim of the mask, not to the mesh directly.

Once the glue is dry, trim away any excess material from the edge of the mask with scissors/hobby kife/etc. The end result should be similar to mine as shown in the image above. Note that the edge around the mask does not need to be super clean, as long as it still conforms to the mask's shape; you'll be covering all this up with more fabric later anyway.

Step 3: Mask Assembly Step 2: Cut the LED Strip Into Sections

Cut the LED strip into sections as shown in the image above. Cut the strip along the contact areas between the LEDs. Be sure to cut them evenly so that you have enough room to solder onto the remaining pads.

You should have 12 sections in total:

Two 5 LED long sections

Four 7 LED long sections

Two 9 LED long sections

Two 11 LED long sections

Two 13 LED long sections

For a total of 104 LEDs.

Step 4: Mask Assembly Step 3: Solder the LED Strip Sections Together

Arrange the LED strips as shown in the image above. For WS2812b LEDs, data only flows in one direction, with each LED passing data to the next LED in line. This means that the orientation of the strip sections is very important. If you do not orient them correctly data will not be able to flow. Make sure to match the orientation shown in the the image above.

This step is the same for both options 1 and 2.

Leave about a 5mm gap between each strip as shown in the image above. Solder 22Ga wire sections to join the strip sections together. These are for power distribution, we'll do the data wires in the next step. You do not have to follow what I've done in the pictures exactly, as long as each section is connected to power and ground.

Step 5: Mask Assembly Step 4: Add Data Wires to the Sections

Flip the strip sections over and solder data lines between each section using 22Ga wire. Use the images above as a guide. Data lines should be added such that data flows out of one section and into the next in a zig-zag pattern. If your strip has adhesive backing you'll need to remove a section of it using a hobby knife in order to solder on the the strip's pads.

This step is the same for both options 1 and 2.

Make sure to tin the pads before soldering, this helps a lot, as the pads are fairly small. Try to avoid heating the strip for too long to avoid potential damage to the LEDs.

(Optional) At this point you should test the strip to ensure it works properly. Skip to Mask Assembly Step 6 and add the data input wire. Then continue on and build the controller. Test the strip and return here to finish the mask assembly.

Step 6: Mask Assembly Step 5: Glue the Strip Sections to the Mask

Glue the strip into the mask. Make sure the orientation is correct; data should flow from left right (when viewed from the front). You need to bend the strip sections to make them conform to the mask's shape. The exact position is up to you, but don't put the strips too high, or they'll push into your nose.

Use hot-glue to secure the strip in place. You should remove the paper covering any adhesive backing before gluing.

Finally, add a ground and positive wires running from one side of the mask to the other as pictured. This is to ensure a steady voltage across all strip sections.

Step 7: Mask Assembly Step 6: Attach Power/Ground/Data Input Wires to the Strip

Cut three ~23cm long sections of 22Ga silicone wire. These wires will connect the strip to the control box and will flex repeatedly when the mask is put on/off. Silicone wires should last much longer than normal wires. The colors are up to you.

Solder these wires to the first (right-most) strip section of the mask. You should attach one wire to the ground, positive, and data pads. The data wire should be attached to the first pad of the first section. Be sure to tin the pads first before adding the wires. Be careful when soldering, you'll likely heat up any hot glue in the area, which can make soldering difficult.

After the wires are attached secure them with hot glue. Be liberal; you want to avoid any of the solder joints flexing directly.

Using a crimping tool and crimp connectors, add a 3 pin JST-XH male connector to the other end of the wires. The order should be positive, data, ground. See the images above. You can also add some heat shrink to help keep the wires together.
For option 2, the JST-XH order is reversed, so it should be ground, data, positive. If you get it wrong it's not a big deal, you'll just have to re-do the JST connector by removing the pins.

Step 8: Mask Assembly Step 7: Attach Cloth Backing to the Mask

Similar to Mask Assembly Step 1, glue a cloth backing to the mask to cover up the LED strip. Any thin, light fabric should work. You want to be able to breath through it easily.

Like with Step 1, try to conform the fabric as best you can to the inside of the mask, then glue it into place with the glue of your choice (hot glue again for me). Finally, trim off any excess fabric around the edge of the mask. This is the last layer, so the neater the better.

Step 9: Controller Assembly Step 1

Grab the Wemos D1 Mini LiPo Combo Board (see pictures). Flip the board over and find the VIN, D5, D6, D7, and D8 jumper pads. Leaving these pads empty allows you to use a logic level converter and 3.3V regulator to power the LEDs, but we don't need to use either of these for this project. Bridge each of the pads with solder as pictured.

Next, cut three 55mm lengths of 22Ga wire. Solder these to the three pads on the left side of the board. Makes sure the wires are on the Wemos side of the board as pictured. These wires will eventually be connected to the power switch.
Please note that the Wemos LiPo Combo Board is a general PCB that I use to mount Wemos D1 Minis. It has a number of optional components that we don't use, so don't worry if it seems like you're missing parts at the end of the assembly.
If you're doing option 2, skip this step.

Step 10: Controller Assembly Step 2

Cut two ~45mm lengths of 22Ga wire. Using two colors will help keep things orderly. Next, strip and solder each of the wires to the VIN +, - positions on the Wemos LiPo Combo board, as pictured. Note that I attached one wire to the top of the board, and one wire to the bottom. This helps keep the bottom of the board less crowded.

Next, solder the two wires to a female 2 pin JST-XH connector as pictured. Pay careful attention to the connector's orientation! It should be oriented with the open side of the connector facing the bottom of the PCB (side with the LLC and VIN jumpers) and the wires should be connected such that the negative wire is closest to the PCB. This will be the connection to the LiPo battery.

Optionally you can add some 3mm heat shrink to shield the connections to the JST.

If you're doing option 2, solder the 2 pin, right angle JST-XH connector to the board (ignore the solder pads under the connector). Make sure it is on the side with the TP4056 and buttons.

Step 11: Controller Assembly Step 3

Cut two 55mm and one 35mm lengths of 22Ga wire. Use three colors if possible. Strip and solder the two 55mm lengths to the D8 pin and a ground pin as pictured. Strip and solder the 35mm length to large pad on the right side of the board closest to the "ON" silkscreen label. The side of the board (top or bottom) that the wires are on doesn't matter.

Solder the three wires to a 3 pin JST-XH female connector. Just like with the 2 pin connector, orientation is critical. As pictured, the connector should be oriented such that its open face faces the bottom side of the PCB (side with the TP4056 and LLC jumpers). The ground wire should be connected to the pin that is closest to the PCB. The wire connected to D8 should be connected to the middle pin. Finally the positive wire should be connected to the outer pin. Optionally you can use 3mm heat shrink to shield the connections. This connector will be used to pass power and data to the mask LEDs.

If you're doing option 2, solder a 3 pin right angle JST-XH connector to the PCB in the appropriate place. It should be on the same side as the 2 pin JST connector.

Step 12: Controller Assembly Step 4

Get the triple button PCB. Using clippers, cut two of the mounting legs off the PCB as pictured. Next, solder three 0805 1k, and 100k resistors and three 1uf capacitors to the bottom of the PCB as indicated. These added components create a de-bounce circuit for the buttons. Finally, solder three 6x6x9mm tactile switches to the top of the PCB.

If you're doing option 2, do the same steps as above, but attach the components to the Wemos Button Combo PCB instead. The buttons should be facing the side with the JST connectors.

Step 13: Controller Assembly Step 5

Cut five lengths of 22Ga wire: three ~20mm lengths and two ~25mm lengths. At least the two 25mm lengths should be different colors.

Now we're going to connect the pushbutton PCB to the Wemos Combo PCB.

Begin by soldering the two 25mm lengths of wire to the 5V and G pins of the pushbutton board. Then solder the other ends to VCC and GND pins on the Wemos Combo board. 5V should be connected to VCC and G connected to GND.

Next solder the three 20mm lengths of wire to the K1, K2 and K3 pins on the pushbutton PCB. Then solder the other end of the wires to pins D5, D6, and D7 on the Wemos Combo Board, as pictured. The connections should be: K1 to D5, K2 to D6 and K3 to D7. If you switch them around it's fine, but you'll have to change a few lines of code later.

If you're doing option 2, skip this step. The buttons are already wired on your PCB version.

Step 14: Controller Assembly Step 6

Do this step for both assembly options 1 and 2.

Solder male 2.54mm headers to the Wemos Combo PCB for the Wemos D1 Mini and the TP4056 as pictured. You may want to use the Wemos and the TP4056 to help align the pins. Trim off any excess pin lengths.

Step 15: Controller Assembly Step 7

Do this for both options 1 and 2.

Before you do this, you should confirm that you can program the Wemos, and that it's working correctly.
Begin by following the instructions here to install the ESP8266 core for the Arduino IDE.

This allows you to program the Wemos as if it was an Arduino. Once installed open the IDE and connect the Wemos to your computer using a micro-USB cable. Under tools->board, select "LOLIN(WEMOS) D1 R2 & Mini". Also select the port the Wemos is connected to under tools. Try uploading blink (or your own favorite test program). If everything's OK, the Wemos's LED should start blinking once a second.

Press the Wemos D1 Mini and TP4056 onto their respective male headers. Solder them in place. Trim off any excess lengths of pins.

Step 16: Controller Assembly Step 8

Solder the three wires you attached in Controller Assembly Step 1 to the slide switch tabs. Make sure the order of the wire ends attached to the switch matches the order that they are attached to the pads on the Wemos Combo PCB (the middle one is the most critical to match correctly, everything will still work, if you switch the outer wires).

If you're doing option 2, you should mount a 3 pin male 2.54mm header to the area labeled "Switch". Mount it so the long legs are on the side with the TP4056.

Step 17: Controller Assembly Step 9

Using a 3D printer, print out each of the parts found at:
https://github.com/AlbertGBarber/Pixel-Mask/tree/m...
You'll need to print out a few copies of "Strap Cable Guide.stl"

Depending on your battery mounting method (see Final assembly Step 1) either print two

"Battery Strap Mount V2.stl"

or

print two "Battery Rear Strap Mount pt 1.stl" and one "Battery Rear Strap Mount pt 2.stl"

or

If you're using a different battery, then you'll have to design your own strap mount.

if you're doing option 1, print out "Box V1"

If you're doing option 2, print out "Box V2"

Print three copies of the button caps for both options.

Step 18: Controller Assembly Step 10

Place all the electronics in the control box as pictured. Make sure you align the USB ports of the TP4056 and Wemos D1 Mini with the corresponding holes in the box. The JST connectors should slide into tabbed mounts. There are a couple of domed pegs for the slide switch to rest on.

Use hot glue to secure everything in place except the pushbutton PCB.

Attach the lid to the box using a length of 1.75mm filament as a hinge pin.

Press the button caps onto the pushbuttons. Using the lid, offer-up the lid holes with the button caps.

Once it's offered-up, glue down the pushbutton board.

If you're doing option 2, your box and board will look a bit different, but you should be able to insert the board into the box without issue. As above, secure it with hot glue. You'll need to slip the slide switch into position on the male headers you attached in the last step.You should cover up the pads below the switch with a bit of tape to avoid shorting to the switch's case.

Step 19: Controller Assembly Step 11

Glue the "Wemos Box Strap Mount" to the control box as pictured. Make sure you leave a gap at the bottom the insert the strap.

Step 20: Controller Assembly Step 12

Create an adapter between you're LiPo's output connector and the control box's JST-XH input connector. Use 22Ga silicone wire and crimp terminals. In my case my LiPo has a red JST connector, so I used the female version for my adapter. The adapter doesn't need to be very long, just a few cm's.
Make sure you pay attention to the connector's orientation. Positive should connect to positive, and ground should connect to ground. This is very important, you do not what to short out your battery!
For option 2 the positive and ground connections to the JST-XH connector should be reversed from the image above.

Step 21: Final Mask Assembly Step 1

Do this for both options 1 and 2.

Slide three "Strap Cable Guides" along the lower right strap of the mask's head harness. Run the cable coming out of the mask through each guide. This helps keep the cable in place.

For the battery, you have two options:

1: Slide two "Battery Strap Mounts" along the lower left strap of the mask's head harness. Then slide you LiPo into the mounts.

2: Glue a pair of "Battery Rear Strap Mount pt 1"'s to a "Battery Rear Strap Mount pt 2", as pictured. we'll attach it to the harness in the next step. Using this option may help reduce wear on the harness's elastic straps.

Reattach the harness to the mask front.

Step 22: Final Mask Assembly Step 2

Attach the control box to the mask's head harness as pictured. The main harness strap should slip into the control box's strap mount hooks.

Secure the control box's lid with an 8mm M2 screw.

If you're mounting the battery on the large rear strap, hook the mount onto the strap just like the controller.

Slide the LiPo into the battery mount.

To connect the LED strip to the controller, insert the the 3 pin male JST connector into the corresponding 3 pin port on the control box. Make sure your wiring is correct; positive to positive, data to data and ground to ground.

To connect the LiPo to the controller, using the adapter, Insert the the 2 pin male JST connector into the corresponding 2 pin port on the control box. Make sure your wiring is correct, a short could damage your LiPo and possibly you as well. Positive should connect to positive, and ground should connect to ground.

Step 23: Code Uploading

The code largely mirrors what I wrote for my LED Pixel Shades, so I'll repeat most of what I said there.

I've written code for the mask that includes 40 different effects. It can be found at my Github in the folder "Pixel_Mask_Code". Before you can upload the code to the Wemos, you'll need two libraries:

The Adafruit Neopixel library

You can download the PixelStrip library from here. Download all the files and place them in a folder named "PixelStrip" in the libraries folder of your Arduino install directory.

You can install the Adafruit Neopixel library using the Arduino IDE's library manager.

Once you've installed both libraries you can open Pixel_Mask_Code.ino and upload it to the Wemos. If everything's good, the mask should begin cycling effects. Your mask is now complete! :).

If something's wrong, please post a question and I'll try to help.

Changing Effects:
If you'd like to disable an effect you'll first need to find it in the Pixel_Mask_Code.ino file. It will be in the large switch statement in the main void loop(). The effects aren't individually labeled, as it's hard to describe them with just comments, so you might have to do a bit of hunting. Once you've found the effect, you just need to change the case number to anything higher than the total number of effects (99 for ex) to disable it.

You're also welcome to modify or add your own effects. To add an effect, add it to the switch statement in the main void loop(), and increase the "numEffects" var.

My library is capable of doing a wide range of effects, but it is a bit difficult to work with. It originally began as just a small storehouse for effects, but I later extended it to run effects across odd shapes of pixels (rings, stars, etc), so it's become a bit jumbled. At this point I have an architecture for the library, and I fully intend to re-write it in the future. In the meantime, the current library is fully commented and bug free (look in segmentSet.h for comments about segments), but you'll probably have to do some experimentation to understand how each effect works.

The Github page includes an Excell spreadsheet containing the numerical layout of the LEDs. This maybe helpful in creating effects.

Buttons:
The mask control box has three buttons. When using my code, they do the following things:

Button 1: Next Effect (or restarts current effect if effect rotation is off)

Button 2: Effect Rotation on/off. This makes the current effect repeat indefinitely

Button 3: Brightness cycle. You can adjust the increments by changing the "brightnessLevels" array in my code.

The code stores the effect number, brightness, and rotation on/off in flash, so they should be remembered after turning the mask off/on. In other words, if you cycled to effect number 5, and set the brightness to level 2 before turning the mask off, when you next turned it on, it would start with effect number 5 at brightness level 2.

The slide switch on the side of the control box turns the mask off and on.
Please note that you should not try to charge the LiPo while the mask is on. Doing so will probably damage your battery.
If you've made it this far, thanks for reading! I hope you have fun with your mask, and stay safe. If you have any questions, please leave a comment and I'll get back to you.

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Neopixel LED Face Mask: Hi everyone, in this Instructable I'm going to show you how to make an animated face mask using WS2812b LEDs (Aka Neopixels). That description doesn't really do it justice, so go check out the video above! Please note that many of the animations u...

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Famous Faces® of STEAM Collaborative Poster (Great STEM Poster, too!)

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Famous Faces® of STEAM Collaborative Poster (Great STEM Poster, too!)

# data[].attributes.attachment_link.readable_text
Do something for your STEM or STEAM studies that your students won't soon forget - with my large, visually-engaging Famous Faces of STEM or STEAM poster. This fun, collaborative activity features 8 inspirational famous innovators:

Sally Ride

Albert Einstein

George Washington Carver

Thomas Edison

Steve Jobs

Benjamin Franklin

Leonardo Da Vinci

Marie Curie.

This poster pairs perfectly with my Unscramble the STEM/STEAM Portraits.

This poster is part of my very popular Famous Faces® series which includes:

My collaboration posters are easy for teachers and fun for kids and make a lasting impression-on students, parents and your entire school community! Large and visually striking, this poster is the perfect inspiration for your young learners. It makes for a great display in the front office, the auditorium, a hallway, or your classroom bulletin board. No matter where it ends up hanging, it will engender unending compliments while proving a source of inspiration to your students and school community.

The collaboration of this Famous Faces of STEM or STEAM poster makes such an impact without really having to say anything - every single piece of the poster matters - just as every child in the class matters. Your students will walk by and say "I did that piece" each time they see the poster. They take great pride in being part of this art project.

Differentiation is built into the design of this Famous Faces of STEM or STEAM poster. Some pages have more to color than others so some kids will easily be able to color two pages. Other pages have a lot of little details to color. You can use this to differentiate and provide the appropriate experience for each child to achieve success and be part of the group.
Famous Faces® of STEM or STEAM Poster Details:
* There are 3 rows and 12 columns for a total of 36 pieces.

* The final poster is approx. 21" x 84" when complete. The exact size will depend on your printer settings.

* This Famous faces of STEM or STEAM poster is ideal for a large bulletin board or a hallway.

* Each poster piece fits on a normal 8.5" x 11" piece of paper.

* Use markers, colored pencils or crayons.

* The colors you will need are: red, blue, purple, orange and green.

* You can leave the background white or use a very light color for the background (explained in the resource).

*Note: If you plan to laminate this poster don't use crayons because often times the heat from the laminator will melt the wax from the crayons and ruin the poster.

***** 2 Poster Options*****

(You do NOT need to print both - just choose which one is right for your students).

Poster #1: The first version of the poster has the color key in black and white with instructions and notes printed at the top telling the students exactly what they need to do on their page (see preview for examples). You will need to print the page in black and white for this option. There are complete instructions in the resource for you.

Poster #2: The second version of this poster has the color key in full color. If you have the ability to print in color please use this option. It will be easier for students to know exactly how their piece should be colored. It's also really helpful for younger children who might not yet be able to read and will save you from having to run around the room reading the different instructions to the kids (see preview for examples).
Famous Persons Featured
Many of the individual famous women on this poster is also available as it's own poster. You can see them individually by clicking on the names below.

You may also like my Growth Mindset Collaboration Poster that was created in this similar style, or my iDesign an App resource that integrates art into a fun, creative and engaging STEM lesson.

I hope your students enjoy this Famous faces of STEM or STEAM collaboration poster and no doubt all the meaningful conversations that will come from it!

I always love to see what your students make - feel free to email me or tag me on social media when you share this project!

Please click the "Follow Me" button on this page to keep updated on all my new offerings!

Thank you for supporting my work and infusing your classroom with art!

Jenny K.

***************************************************************************
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Sign up HERE to join my mailing list and I'll send you my kindness coloring sheets as a 'thank you.' I love to spoil my e-mail subscribers by sending exclusive freebies, tips and tricks, as well as special announcements of sales-not to mention that after you join you'll get invited to my "Subscribers Library" of freebies.

**************************************************************************

TERMS OF USE:

The purchase of this product is for one license and is for PERSONAL USE ONLY.

©Copyright 2017 Art with Jenny K.® ALL RIGHTS RESERVED. Permission is granted to copy pages specifically designed for student or teacher use by original purchaser or licensee. The reproduction of any part of this product is strictly prohibited. Copying any part of this product and/or placing it on the internet in any form (even a personal/classroom website) is strictly forbidden. Doing so is a violation of the Digital Millennium Copyright Act (DMCA).

**************************************************************************

If you like my work please help me keep the price low by purchasing additional licenses for any teacher you would like to share this lesson with. Extra licenses are discounted.

# data[].attributes.attachment_link.title
Famous Faces® of STEAM Collaborative Poster (Great STEM Poster, too!)

# data[].attributes.attachment_link.description
Do something for your STEM or STEAM studies that your students won't soon forget - with my large, visually-engaging Famous Faces of STEM or STEAM poster. This fun, collaborative activity features 8 inspirational famous innovators:Sally RideAlbert EinsteinGeorge Washington CarverThomas EdisonSteve Jo...

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Black History Month Activity: Famous Faces® Collaborative Poster [Volume 1]

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Black History Month Activity: Famous Faces® Collaborative Poster [Volume 1]

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Do something for Black History Month that your students won't soon forget-with my large, visually-engaging "Famous Faces®" of Black History Month poster/banner.

This fun, collaborative activity features eight (8) inspirational African Americans:

Thurgood Marshall

Ruby Bridges

George Washington Carver

Harriet Tubman

Jackie Robinson

Dr. Martin Luther King, Jr.

Rosa Parks

Barack Obama

Great for ANY grade PreK - High School!!!

------------------------------------------------------------------------------------------------------------------

I have developed a companion featuring an additional eight (8) inspirational figures from African American history. Volume 1 and Volume 2 can be combined to create a single banner that is 14 feet long! This makes for a visually-inspiring, large classroom or school hallway presentation. The combined product is available here at substantial savings over Volumes 1 and 2 sold individually.

------------------------------------------------------------------------------------------------------------------
You also may be interested in my
My collaboration posters are easy for teachers and fun for kids and make a lasting impression-on students, parents, and your entire school community! Large and visually striking, this poster is the perfect accompaniment to your social studies lessons and/or Black History Month celebrations. It makes a great display for the front office, the auditorium, a hallway, or your classroom. No matter where it ends up, it will engender unending compliments and conversations while proving a source of inspiration for your students and school community.

The collaborative aspect of this Black History Month poster makes a big impact without really having to say anything. Every single piece of the poster matters, just as every child in the class matters. Your students will walk by and say "I did that piece!" each time they see the poster. They take great pride in being part of this art project.

Differentiation is built into the design of this Black History Month poster. Some pages have more to color than others, so some kids will easily be able to color two pages. Other pages have a lot of little details to color. You can use this to differentiate and provide the appropriate experience for each child to achieve success and be part of the group.
Black History Month Poster Details:
* There are 3 rows and 12 columns for a total of 36 pieces.

* The final poster is approx. 21" x 84" when complete. The exact size will depend on your printer settings.

* This Black History Month poster is ideal for a large bulletin board or a hallway.

* Each poster piece fits on a normal 8.5 inches x 11 inches piece of paper.

* Use markers, colored pencils, or crayons.

* The colors you will need are red, blue, pink, purple, and green.

* You can leave the background white or use a very light color for the background (explained in the resource).

I have included name labels for each of the people included on this poster (see the Preview for images).

I have included additional pages that you can use if you would rather have the poster say, "African-American History Month" instead of "Black History Month."

*Note: If you plan to laminate this poster don't use crayons because oftentimes the heat from the laminator will melt the wax from the crayons and ruin the poster.

***** 2 Poster Options*****

Poster #1: The first version of the poster has the color key in black and white with instructions and notes printed at the top telling the students exactly what they need to do on their page (see the Preview for examples). You will need to print the page in black and white for this option. There are complete instructions in the resource for you.

Poster #2: The second version of this poster has the color key actually in full color. If you have the ability to print in color please use this poster. It will be easier for students to know exactly how their piece should be colored. It's also really helpful for younger children who might not yet be able to read and will save you from having to run around the room reading the different instructions to the kids (see the Preview for examples).
Famous Persons Featured
Each of the individual famous people on this poster is also available as their own poster. You can see them individually by clicking on the names below.

This poster is part of my very popular Famous Faces® series which includes:

I hope your students enjoy this Black History month poster and no doubt all the meaningful conversations that will come from it!

I always love to see what your students make-feel free to email me or tag me on social media when you share this project!

Please click the "Follow Me" button on this page to keep updated on all my new offerings!

Thank you for supporting my work and infusing your classroom with art!

Jenny K.

***************************************************************************
Let's Connect My BLOG Pinterest Instagram Facebook Twitter
***************************************************************************

Sign up HERE to join my mailing list and I'll send you my kindness coloring sheets as a 'thank you.' I love to spoil my e-mail subscribers by sending exclusive freebies, tips and tricks, as well as special announcements of sales-not to mention that after you join you'll get invited to my "Subscribers Library" of freebies.

**************************************************************************

TERMS OF USE:

The purchase of this product is for one license and is for PERSONAL USE ONLY.

©Copyright 2017 Art with Jenny K.® ALL RIGHTS RESERVED. Permission is granted to copy pages specifically designed for student or teacher use by the original purchaser or licensee. The reproduction of any part of this product is strictly prohibited. Copying any part of this product and/or placing it on the internet in any form (even a personal/classroom website) is strictly forbidden. Doing so is a violation of the Digital Millennium Copyright Act (DMCA).

**************************************************************************

If you like my work please help me keep the price low by purchasing additional licenses for any teacher you would like to share this lesson with. Extra licenses are discounted.

# data[].attributes.attachment_link.title
Famous Faces® of Black History Collaborative Poster [v1] w/ Martin Luther King

# data[].attributes.attachment_link.description
Do something for Black History Month that your students won't soon forget-with my large, visually-engaging "Famous Faces®" of Black History Month poster/banner. This fun, collaborative activity features eight (8) inspirational African Americans: Thurgood Marshall Ruby Bridges George Washington Carver Harriet Tubman Jackie Robinson Dr. Martin Luther King, Jr.

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CS Unplugged is a collection of free teaching material that teaches Computer Science through engaging games and puzzles that use cards, string, crayons and lots of running around.

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By converting our sims to HTML5, we make them seamlessly available across platforms and devices. Whether you have laptops, iPads, chromebooks, or BYOD, your favorite PhET sims are always right at your fingertips.Become part of our mission today, and transform the learning experiences of students everywhere!

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Voici les liens dans les 4 cases.

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Get Minecraft Education for your classroom. Find out how using this game will take your students' learning to the next level.

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Minecraft: Education Edition Teacher Academy

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Minecraft: Education Edition Teacher Academy

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Microsoft Educator Center

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Educator Center Overview - Microsoft Learn Educator Center

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Microsoft Learn for Educators takes the best of Microsoft Learn online learning paths and helps you to bring instructor-led training materials from Microsoft into your courses. This program provides members with access to Microsoft ready-to-teach curriculum and teaching materials aligned to industry-recognized Microsoft Certifications.

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18 nov 2020

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Thierry Karsenti

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Hour of Code: How to participate in the global STEAM event! — Flipgrid

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Hour of Code: How to participate in the global STEAM event! — Flipgrid

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Every day, you amaze us with your creativity, storytelling, and innovation! With Hour of Code upon us, we're excited to share a series of STEAM resources - inspired by you - to help you get ready for your coding journey.

What is Hour of Code?

Hour of Code is an annual worldwide effort that encourages a broader participation in computer science. During the 2020 Computer Science Education Week (Dec. 7-13), thousands of one-hour coding activities will take place within nearly 200 countries. You can be among this effort!

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Hour of Code: How to participate in the global STEAM event! - Flipgrid

# data[].attributes.attachment_link.description
Get ready for Hour of Code with Flipgrid! Every day, you amaze us with your creativity, storytelling, and innovation! With Hour of Code upon us, we're excited to share a series of STEAM resources - inspired by you - to help you get ready for your coding journey.