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Wayground - The world's most engaging learning platform

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Find and create gamified quizzes, lessons, presentations, and flashcards for students, employees, and everyone else. Get started for free!

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MathGPT is an AI-powered math problem solver, integral calculator, derivative cacluator, polynomial calculator, and more! Try it out now and solve your math homework!

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Thetawise - Most Accurate Math AI Tutor | Instant help & Step-by-Step solutions to help students learn complex and Advanced Math concepts | Tutoring mode, Advanced solver, Practice sessions, and more | Learn at your own pace and time.

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Brisk Teaching is the #1 AI-powered Chrome extension , helping you automate your workload without adding to it.

⭐️⭐️⭐️⭐️⭐️ 5 star rating * 200,000+ teachers

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Provide Instant AI-Powered Personalized Feedback

Give personalized feedback and ensure high-quality feedback on every assignment, from the first to the last. Brisk's four feedback styles - Targeted Comments, Glow & Grow praises, Rubric Criteria, and actionable Next Steps - simplify your feedback routine.

Create AI-Driven Curriculum, Lesson Plans, Quizzes, and More with Ease

Say goodbye to the endless challenge of crafting engaging and relevant instructional materials. With just a few clicks, you can quickly generate rigorous quizzes, comprehensive lesson plans, detailed rubrics, captivating presentations, effective interventions, and much more, streamlining your preparation process.

Inspect and Assess Student Writing with AI Tools

We've taken AI detection to the next level. With the 'Replay' feature, you can see exactly how your students put together their assignments, with a video of their whole process from beginning to end.

Easily Adjust Reading Levels and Translate Texts with AI

Ensure every student can access classroom materials. With just a few clicks, instantly convert any online text into a Google Doc that's either simplified for different reading levels and/or translated into another language.

AI-Powered Professional Tools That Educators Deserve

Brisk is a free AI-powered Chrome extension that helps busy teachers save time directly within the tools they already use, like Google Docs, Slides, YouTube, and web articles. Quickly create instructional materials, share feedback, evaluate student writing, and adjust or translate texts - all without leaving your current workspace. With Brisk, the days of toggling between apps are over, freeing up more time for what you love: teaching.

Prep for the week in seconds with the Create Menu

No matter what grade level or subject area you teach, you can create, personalize, and differentiate curricular materials, lesson plans, quizzes, IEPs, rubrics, and more with the click of a button.

Using Google? Brisk integrates seamlessly with Google workspace. Google docs and forms created with Brisk can be instantly assigned in Google Assignment and Google Classroom. No copy and paste needed.

Drastically reduce time spent grading with feedback in Brisk

Leave feedback for students in four ways: ✨ Glows & Grows, 🎯 Targeted, 📏 Rubric Criteria, and 🪜 Next Steps.
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Brisk's unparalleled 🎯 Targeted Feedback tool instantly crafts Google Doc comments aligned with your rubric and standards, guiding students precisely where they need to revise. (Premium Feature

Inspect writing to understand the evolution of student work

Wondering how students revised their work? With Brisk you can watch a step-by-step playback of your students' revision history, including their copy and paste actions.

Brisk also leverages a cutting-edge AI-detection model to estimate the likelihood of AI writing. This gives you a starting point to facilitate conversations around academic honesty and dishonesty.
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Level educational materials to meet students where they're at

Have you encountered a resource that doesn't match your classroom's reading level? Brisk takes content from any Google doc, article, or website and converts the material into a document that is suitable and leveled for your students. Brisk will simplify complex ideas, shorten lengthy sentences, adjust the word choice, and so much more.

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Trusted by Over 200,000 Educators

"Brisk Teaching is an incredible AI tool. It serves as a blueprint for instant student feedback - which you can edit on the spot. If this would have come out years ago, more teachers would likely be feeling way less burnout. You can tell this is a product made by teachers for teachers. They thought of everything. If you're a teacher and haven't tried this tool, do it."

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"As a Language Arts teacher, one of the hardest parts of my job is providing enough meaningful feedback for my students. Brisk has allowed me to provide way more specific and actionable feedback for my students. It has also helped me to see more elements of quality that I had previously overlooked in my students' work. The ease of access with Brisk is also a huge bonus. I can use this tool in all of the different platforms that my students use. I can't wait to see future versions - that will continue to help me provide the feedback that my students need."

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Queens College Taunton

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Nicole L.
English Teacher
Derry, New Hampshire

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Brisk is a free AI-powered Chrome extension that helps busy teachers save time directly within the tools they already use, like Google Docs, Slides, YouTube, and web articles. Teachers use Brisk as a Targeted Feedback Generator, AI Presentation Maker, AI Quiz Maker, AI Lesson Plan Generator, AI Rubric Generator, Letter of Recommendation Generator, IEP 504 Template Maker, and so much more.

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https://www.ducksters.com/

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A fun activities and games site covering subjects such as sports, animals, history, science, geography, jokes, math, and biographies. Pages are written to be easy to read and understand.

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https://kids.britannica.com/

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Britannica's new platform provides content designed and written specifically for early learners.
Creating a more engaging and fun learning experience for students, the activities in Britannica Fundamentals align with the content areas children learn in the classroom. From language and literacy to geography and mathematics, Britannica Fundamentals supports classroom curriculum while also building digital literacy.

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From Britannica, an online encyclopedia resource for kids in grades K-12 with safe, fact-checked, age-appropriate content for homework help and learning...

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https://www.kiddle.co/

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Kiddle is a safe search engine, offering a safe web, image, and video search. Results are vetted by editors.

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https://www.mentimeter.com/

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Interact with your audience using real-time voting. No installations or downloads required - and it's free!

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https://quizizz.com/

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The evidence is in the practice

ESSA Level 3 correlation evidence in math and ELA, earned by teachers running frequent formative assessments.

When teachers run 30+ formative questions a week, the research is clear: they get more data-driven, their students get more engaged. Wayground is built to make that practice enjoyable ot run, attainable to fit a class period, and habitual enough to last past September.

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Quizizz is now Wayground | Teacher AI and Resources

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Find standards-aligned resources that engage every student. Wayground (formerly Quizizz) helps teachers differentiate instruction with AI and track student progress.

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https://www.linggle.com/

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https://www.bookbildr.com/

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Make Children's Picture Books Online for Free

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Create storybooks with our free online children's book illustrator. Make gorgeous custom picture books for kids, order printed copies or download a PDF.

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https://www.mnemonicgenerator.com/

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Type in some words to generate a mnemonic sentence.

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https://study.com/academy/practice/quiz-worksheet-wong-s-classroom-management-theory.html

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https://www.liveworksheets.com/

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Liveworksheets.com - Interactive worksheets maker for all

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Liveworksheets transforms your traditional printable worksheets into self-correcting interactive exercises that the students can do online and send to the

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https://www.mathsisfun.com/quadrilaterals.html

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Quadrilateral just means "four sides"
( quad means four, lateral means side).

A Quadrilateral has four-sides, it is 2-dimensional (a flat shape), closed (the lines join up), and has straight sides.

Try it Yourself

geometry/images/geom-quad.js?mode=choose
(Also see this on Interactive Quadrilaterals)
Properties

A quadrilateral has:

four sides (edges)

four vertices (corners)

interior angles that add to 360 degrees:

Try drawing a quadrilateral, and measure the angles. They should add to 360°

Types of Quadrilaterals

There are special types of quadrilateral:

Some types are also included in the definition of other types! For example a square, rhombus and rectangle are also parallelograms. See below for more details.

Let us look at each type in turn:

The Rectangle

the little squares in each corner mean "right angle"
A rectangle is a four-sided shape where every angle is a right angle (90°).

Also opposite sides are parallel and of equal length.

the little squares in each corner mean "right angle"
The Square

A square has equal sides (marked "s") and every angle is a right angle (90°)

Also opposite sides are parallel.

A square also fits the definition of a rectangle (all angles are 90°), and a rhombus (all sides are equal length).

The Rhombus

A rhombus is a four-sided shape where all sides have equal length (marked "s").

Also opposite sides are parallel and opposite angles are equal.

Another interesting thing is that the diagonals (dashed lines) meet in the middle at a right angle. In other words they "bisect" (cut in half) each other at right angles.

A rhombus is sometimes called a rhomb or a diamond.

The Parallelogram

A parallelogram has opposite sides parallel and equal in length. Also opposite angles are equal (angles "A" are the same, and angles "B" are the same).

NOTE: Squares, Rectangles and Rhombuses are all Parallelograms!

Example:

A parallelogram with:

all sides equal and

angles "A" and "B" as right angles

is a square!

The Trapezoid (UK: Trapezium)

A trapezoid (called a trapezium in the UK) has a pair of opposite sides parallel.

And a trapezium (called a trapezoid in the UK) is a quadrilateral with NO parallel sides:

An Isosceles trapezoid, as shown above, has left and right sides of equal length that join to the base at equal angles.

The Kite

Hey, it looks like a kite (usually).

It has two pairs of sides:

Each pair is made of two equal-length sides that join up.

Also:

the angles where the two pairs meet are equal.

the diagonals, shown as dashed lines above, meet at a right angle.

one of the diagonals bisects (cuts equally in half) the other.

... and that's it for the special quadrilaterals.

Irregular Quadrilaterals

The only regular (all sides equal and all angles equal) quadrilateral is a square. So all other quadrilaterals are irregular.

The "Family Tree" Chart

Quadrilateral definitions are inclusive.
(We don't say "Having all 90° angles makes it a rectangle except when all sides are equal then it is a square.")
Example: a square is also a rectangle.

So we include a square in the definition of a rectangle.

This may seem odd, as in daily life we think of a square as not being a rectangle ... but in mathematics it is.

Using the chart below we can answer such questions as:

Is a Square a type of Rectangle? (Yes)

Is a Rectangle a type of Kite? (No)

Complex Quadrilaterals

Oh Yes! when two sides cross over, we call it a "Complex" or "Self-Intersecting" quadrilateral, like these:

They still have 4 sides, but two sides cross over.

Polygon

A quadrilateral is a polygon. In fact it is a 4-sided polygon, just like a triangle is a 3-sided polygon, a pentagon is a 5-sided polygon, and so on.

Play with Them

Now that you know the different types, you can play with the Interactive Quadrilaterals.

Other Names

A quadrilateral can sometimes be called:

a Quadrangle ("four angles"), so it sounds like "triangle"

a Tetragon ("four polygon"), so it sounds like "pentagon", "hexagon", etc.

621,622,623,624,763,764, 2128, 2129, 3230, 3231

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Quadrilateral just means four sides(quad means four, lateral means side). ... A Quadrilateral has four-sides, it is 2-dimensional (a flat shape), closed (the lines join up), and

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https://papers.gceguide.com/

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CAIE Past Papers for Cambridge O Level, Cambridge Int'l AS and A Level and Cambridge IGCSE subjects

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https://www.savemyexams.co.uk/

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Step One: Revise

Every revision guide is written specifically for that syllabus so you only revise what you need to know.

Concise, well-organised notes - written by expert teachers and examiners.

Memorable diagrams - perfect for learning key concepts and processes.

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Tailored questions - for specific GCSE, IGCSE, IB and A Level exams.

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Check your results. View the model answer for every question, explained by an expert educator on that subject.

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Videos - explaining many answers.

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Step One: Revise Every revision guide is written specifically for that syllabus so you only revise what you need to know. Concise, well-organised notes - written by expert teachers and examiners. Memorable diagrams - perfect for learning key concepts and processes. Exam tips - insider info shared by examiners and teachers.

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https://www.cuemath.com/trigonometry/

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Trigonometry - What is Trigonometry? Formulas, Table, Examples

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Trigonometry is the branch of mathematics that deals with the measurement of angles and the ratio of sides of a right-angled triangle. To know more about trigonometric ratios, formula, applications, visit Cuemath

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Keep students engaged and connected with social annotation.r Education : Hypothesis

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Solutions for education Keep students engaged and connected with social annotation. Hypothesis turns any piece of digital content into a collaborative learning experience. Get Started

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Paste your text into the box. Press “Sift!” to visualize.

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Toolsuite for visualizing and exploring passages of text.

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So students can "show what they know" in Math, Science, English, History and Storytelling. (iOS only)

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Animation & Drawing by Do Ink is the fun, creative way to make animations on your iPad. The app was designed to be easy for beginners and young animators, but with powerful tools for creating advanced animations. Use the drawing editor to create vector artwork and frame-by-frame (flip book) animations. Use the composition editor to combine your artwork - along with props from the Do Ink prop library - into more complex and sophisticated scenes. Save to the camera roll, then share your creations with friends, classmates, or the world!

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Do Ink provides Creativity Apps -Green Screen by Do Ink and Animation and Drawing by Do Ink for students to show what they know in education.

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Popplet is the easiest way to visualize your ideas and so much more!

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Important — Popplet.com service is ending July 1, 2026. Please read the official announcement here,and visit our new site Superstructures.io.

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A diagram is worth a thousand words — especially when it comes to technical documentation. Visualize everything with Gliffy for Confluence.

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Diagramming Software Built for Any Team | Gliffy by Perforce

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Gliffy was one of the original apps on the Atlassian Marketplace and continues to offer the deepest integrations with Atlassian's tools today. It's the only interactive diagram maker within Confluence, giving users the ability to toggle through layers and information in the diagram viewer.

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Create and personalize lesson plans, infographics, posters, video, and more. 100% free for teachers and students at eligible schools.

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Create a Visual Timeline About Any Topic

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Preceden Timeline Maker: Create a Timeline in Minutes

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Generate a timeline using AI or from scratch. Perfect for project plans, school assignments, fiction writing, legal matters, and much more.

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Free online timeline maker

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Time.Graphics is the timeline maker wich provides you free with some limits and premium version without restrictions. Make a historical analysis in one click! Yup, it’s real! We present to your attention the amazing website!

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GeoGebra is more than a set of free tools to do math. It’s a platform to connect enthusiastic teachers and students and offer them a new way to explore and learn about math.

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GeoGebra - the world's favorite, free math tools used by over 100 million students and teachers

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Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more

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Graphing calculator

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Desmos offers best-in-class calculators, digital math activities, and curriculum to help every student love math and love learning math.

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Show students how to construct shapes with a big compass, ruler, protractor, and pencil.

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EON Reality - AI Assisted XR-based knowledge transfer for education and industry

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Home - EON Reality - AI Assisted XR-based knowledge transfer for education and industry

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Learn & Train with Immersive AI LEARN. TRAIN. PERFORM. get started! Trusted Over 100 Companies in the World About Us More than 20 Years in AR / VR EON Reality...

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Augmented Reality For The Classroom. HP Reveal is a free app for iOS and Android devices that uses advanced image recognition to blend the real-world with rich interactive content, such as videos and animations, called “Auras”.

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Experience the immersive wonder of 3D Augmented Reality with engaging coloring experiences that let your creativity run wild.

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Learn Science, Master STEM, Be Future Ready. | AR/VR Learning & Creation

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Merge EDU uses spatial computing technology to allow students to touch and interact with 3D digital content. Hold anything, Go anywhere.

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ThingLink: Create unique experiences with interactive images, videos & 360° media

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Easily create interactive and immersive visual experiences for online communication and learning. Start a free trial!

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Integrate technology in English language teaching

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Tech & Learning's purpose is THE go-to resource to help K-12 educators and administrators use technology to enhance the student experience and drive innovative learning.

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This site will serve as the entry point to these resources, ideas, tips, and tricks. The links to the pages are below.

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Educational technology for K-16 educators

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EdTech resource with a brief description as to how it can help teachers improve instruction and student learning.

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Sketch Engine for language learning

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Thesaurus.com - The world’s favorite online thesaurus!

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Thesaurus.com is the world’s largest and most trusted online thesaurus for 25+ years. Join millions of people and grow your mastery of the English language.

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Gimkit is a game show for the classroom that requires knowledge, collaboration, and strategy to win. Get started for free!

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Easily turn a Google™ Spreadsheet into a Set of Online Flashcards and Other Cool Stuff!

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Flippity.net: Flashcards and Other Resources for Educators and Learners

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Create an interactive virtual breakout activity.

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For Remote or In-Person Classrooms

Factile is a free learning platform that lets teachers create engaging jeopardy-style quiz games for the remote or in-person classroom

Assess students' understanding of new topics or review the latest concepts using our simple, user-friendly gameboard template. Create and share your games with students, or search our database of already-created games. Use Factile with Google Classroom to easily assign games and flashcards to your class.
Play Demo Game

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Play in classroom or remote with Buzzer Mode

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Buzzer Mode

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Turn phones, tablets or computers into buzzer buttons for an engaging multi-player gameshow experience

"Factile is fun and exciting. Students enjoy the competition, the team-building, the camaradarie, the positive reinforcement, or all of the above. The standard, free version is very workable and click-driven, although I am sure the premium version contains greater functionality that may appeal to some folks. Your students will enjoy it as much as you enjoy watching them learn"

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See more reviews

Are you looking to make your Factile game even more engaging? Let students BUZZ IN via their laptops, phones or tablets! Remote or In-Classroom.

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Create custom games

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Multi-language support
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For Remote or In-Person Classrooms

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Classroom Jeopardy Review Game | Buzzer Mode | Factile

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Create your own Jeopardy template online without PowerPoint, or browse the pre-made templates to play Jeopardy-style classroom games or quizzes in minutes.

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Tes - Education Jobs, Teaching Resources, School Software & Magazine

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Tes is dedicated to supporting the world's teachers. Our mission is to enable great teaching by helping educators to find the tools and technology they need to excel and by supporting them throughout their career and professional development.

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Welcome to the Mathematics Library. This Living Library is a principal hub of the LibreTexts project, which is a multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education at all levels of higher learning. The LibreTexts approach is highly collaborative where an Open Access textbook environment is under constant revision by students, faculty, and outside experts to supplant conventional paper-based books.

Home is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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The LibreTexts libraries collectively are a multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education.

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https://www.youtube.com/watch?v=zHgqzdNwBiw&embeds_referring_euri=https%3A%2F%2Fprezi.com%2F&source_ve_path=Mjg2NjY

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Introduction to Mathematics IA - Grade 11

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MATHS IA A short report on an area of Mathematics of interest to YOU It could be...a modelling task, an investigation, a statistical analysis, an application of mathematics, pure mathematics ... It is worth 20% of final grade (marked out of 20) No idea...? Look in a textbook -

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Getting ideas

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Problem of the Month | University of Waterloo - CEMC

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Monthly mathematical challenge that promotes deeper thinking and advanced problem-solving abilities.

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Explore the Connections

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Overview

Our resources are organised into topics or stations on a map or tubemap showing the connections between them.

Watch this video or use the preceding menu to find out more.

The map

The mathematics has been organised along a system of tube lines, which reflect big themes that run through mathematics. The tubemap offers a way to navigate to resources for teaching a particular area of mathematics; resources can be accessed by clicking on a station name. Some stations are still in development and this is indicated by a construction symbol.

You can access the map at any time by clicking the Map button in the main menu.

Stations

Each station features an overarching question that could be used to stimulate curiosity. There are a number of key questions that summarise the ideas that arise in the resources. You can filter resources by selecting a key question. You can also filter resources by tube line, if you wish to choose a resource with a particular emphasis.

The resources that are available at each station may come under three headings. Resources that introduce new ideas relating to the station are in the "Introducing" section. "Developing" resources may build on these ideas or earlier work. "Review questions" are mostly drawn from past examination questions and have been chosen as ones that are interesting in nature and require non-routine thinking.

Resources

To help you find the resources you are looking for, we have classified them according to twelve resource types.

Resources are divided into sections. In some cases this may be a warm-up followed by a larger task, and others may have a problem followed by a suggestion of how to tackle it. Almost all resources contain a solution or a "Things you might have noticed" section. This may help you to think about questions you might ask students, to see areas where students could get stuck, or offer further insight into how you might use the resource in your classroom. Further support is offered in the teacher notes.

Pervasive ideas

By clicking on a pervasive idea you will find a description of how the idea arises within the resources. If pervasive ideas are highlighted in a resource they appear in the sidebar (or bottom-bar on a small screen) and in the list of resources at the station (on a wide screen).
What are pervasive ideas?
Search

Use the Search button in the top menu bar to open the search dialog.

You can search for resources by title, keywords or text within the resource. Review questions can be searched by question Ref. You can also search for pervasive ideas and mathematical processes such as visualising.

You can also browse all our material with filtering options by clicking the Browse button in the main menu.

Saving resources

You can save a resource for later by adding it to your resource collection. To do this click the star next to the resource title. Note you must log in or register to use this facility. To access your resource collection, click the User button in the top menu bar then Your resource collection.

Within your resource collection, you can organise your resources by creating ordered subcollections. To add a resource to a subcollection, click the add to subcollection icon in your resource collection table. To select a subcollection, use the drop-down list above the table. You can also generate a PDF of resources from a subcollection, which could be used to generate your own exam from our review questions, for example.

Bundles and more

The More menu in the top right contains links to the Underground hub, our About and contact page and the Your mathematical classroom section of the site.

Our About page contains a video explaining our philosophy.

The Your mathematical classroom area of the site is accessible from the More menu and has been coloured purple to distinguish it from the rest of the site, as well as having its own menu once inside this area. It contains support for using our resources in the classroom as well as professional development opportunities. This includes the Bundles page, which contains small collections of resources that have a particular focus or goal, our Resources in action page, which provides detailed teacher support for a handful of resources, our blog, upcoming and recorded webinars, a courses page, and information about our Champions programme.

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A level maths teaching resources | Underground Mathematics

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Rich resources for teaching A level maths, enabling all students to explore the connections that underpin mathematics. The resources are free for all users.