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The best and most comprehensive source for instructional videos and practice modules in math and science

Substitute days
Digital classroom
Make up lessons
Re-teaching difficult lessons

Pros- vast library, high quality, free, includes practice problems

Cons- too much content, not
aligned to CCSS, teachers must curate and select content to sync with their lessons

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If you're seeing this message, it means we're having trouble loading external resources on our website.

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11,300 possible mastery points

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The Algebra 2 course, often taught in the 11th grade, covers Polynomials; Complex Numbers; Rational Exponents; Exponential and Logarithmic Functions; Trigonometric Functions; Transformations of Functions; Rational Functions; and continuing the work with Equations and Modeling from previous grades. Khan Academy's Algebra 2 course is built to deliver a comprehensive, illuminating, engaging, and Common Core aligned experience!

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Create, record, and upload video presentations sharing your computer screen along with split screen camera and audio on the presenter.
This is an essential tool for creating original video presentations.
Video files may be uploaded to Youtube or other platforms.

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millions use Screencastify to create amazing videos

/* Sets tab pane to display block instead of default display:none */ /* Allows CSS opacity transitions */ .w-tab-pane, .w--current { display: block; } /* Any .w-tab-pane that does not have webflow .w--curent sets opacity 0 */ .w-tab-pane:not(.w--curent) { opacity: 0; } /* Any element with .w-tab-pane that has .w--tab-active sets the opacity 100% */ .w-tab-pane.w--tab-active { opacity: 1; } /* Set the opacity transition to 1 second ease-in */ .w-tab-pane { transition: opacity 1s ease-in; }

Educator, student, marketer, engineer, gamer. Whatever part you play, you'll have simple, yet powerful screen recording and editing tools.
Learn more

Easily share your creations in multiple channels. Let more viewers watch, pause and rewind on their schedule while maximizing time by eliminating unnecessary meetings.
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Collect video assignments to ensure any team or student is heard. Track viewing activity and add interactive questions and more to ensure your message is understood.
Learn more

Educator, student, marketer, engineer, gamer. Whatever part you play, you'll have simple, yet powerful screen recording and editing tools.
Learn more

Easily share your creations in multiple channels. Let more viewers watch, pause and rewind on their schedule while maximizing time by eliminating unnecessary meetings.
Learn more

Collect video assignments to ensure any team or student is heard. Track viewing activity and add interactive questions and more to ensure your message is understood.
Learn more

loved by everyday video creators

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Screencastify | Screen Recording and Video Editing

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Screencastify is the leading screen recorder for Chrome. Install the extension to record, edit, and share videos in seconds. Create video class assignments, training and tutorials, and make business communication faster.

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Another comprehesive online interactive math class with lessons tutorials and practice problems.

Organized by CCSS

Contains modules specifically designed for college entrance exams- ACT, SAT

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Math planet is an online resource where one can study math for free. Take our high school math courses in Pre-algebra, Algebra 1, Algebra 2 and Geometry. We have also prepared practice tests for the SAT and ACT. We have recently launched a basic programming course in Python language for beginners.

The educational material is focused on US high school maths. However, since maths is the same all over the world, we welcome everybody to study math with us, for free.

Every contribution, no matter the size, has a significant impact on Mathplanet. We are dedicated to offering a free, accessible platform for learning mathematics. Your support helps us continue this mission and ensures that knowledge remains within reach for everyone. Thank you for being a part of our math-loving community.
Click on the donation button and support Mattecentrum!

Mattecentrum, established in 2008 within Sweden, is a non-profit membership organization. It has been dedicated to offering complimentary assistance in mathematics for all individuals engaged in mathematical studies, for free. The primary goal of Mattecentrum revolves around fostering equitable access to knowledge while also fostering greater interest and proficiency in mathematics and other STEM-related disciplines. The organization's membership spans ages 6 to 26.

Through its network, Mattecentrum orchestrates complimentary math labs throughout Sweden, conducted within schools, libraries, and various other venues spread across 24 different cities. Each month, over 3500 students nationwide receive personalized educational support courtesy of the contributions from Mattecentrum's dedicated group of 450 active volunteers.

Mattecentrum also offers FREE online help apart from Mathplanet:

Math labs for tutoring support
Throughout 2022, math lab activities were carried out in 24 locations. Conventions were organized on eight occasions. Mattecentrum's member organizations collectively provided 35,696 hours of homework assistance within physical math labs.

Digital Math Labs
In Mattecentrum's digital math labs, also known as Live Help, students can engage with the organization's volunteers through video meetings to receive personalized assistance with their math queries. Live Help offers both drop-in sessions and scheduled meetings.

During 2022, Live Help was manned by 27 digital volunteers and facilitated 1,642 student interactions, involving a total of 3,003 hours of homework assistance.

Pluggakuten
Pluggakuten is Mattecentrum's digital homework assistance platform where members can ask questions and respond to others via an open chat, covering mathematics and other school subjects. In 2022, the site was supported by four moderators who ensured a safe environment and adherence to rules and guidelines. Mattecentrum measures the usage of Pluggakuten in homework help sessions (HS), where a session lasting at least 1 minute on Pluggakuten.se is counted as a digital homework assistance occasion. In total, Pluggakuten.se had 828,182 HS globally, with 779,205 being national.

Ekonomikoll in Swedish
Ekonomikoll.se is a website that provides insights and tools in finance. We review fundamental principles and concepts that impact our financial future.

Matteboken in Swedish and Arabic
Matteboken is Mattecentrum's digital knowledge site, offering math exercises, theory, and video lessons spanning from preschool to the highest level of high school. The site also includes puzzles, quizzes for college entrance exams, and a collection of old national exams. Matteboken is freely accessible and is also available in an Arabic language version.

Mattecentrum measures the usage of Matteboken in homework help sessions (HS), where a session lasting at least 3 minutes is counted as a digital homework assistance occasion. In 2022, Matteboken.se had a total of 599,874 HS globally, with 561,794 being national. The Arabic version of Matteboken.se had a total of 32,537 HS globally, with 5,745 being national.

Formelsamlingen
Formelsamlingen.se is Mattecentrum's digital compendium of formulas in mathematics, physics, and chemistry. Mattecentrum measures the usage of Formelsamlingen in homework help sessions (HS), where a session lasting at least 1 minute is counted as a digital homework assistance occasion. In 2022, the site had a total of 21,159 HS globally, with 19,532 being national.

Mathplanet
Mathplanet is Mattecentrum's English-language digital math book, featuring exercises, theory, and video lessons covering high school mathematics. Mattecentrum measures the usage of Mathplanet in homework help sessions (HS), where a session lasting at least 3 minutes is counted as a digital homework assistance occasion. Mathplanet.com had a total of 130,252 HS globally, with 902 being national.

In total, there were 1,799,037 global homework help sessions in our combined digital tools during 2022, with 1,549,566 being national.

YouTube
Mattecentrum has three YouTube channels featuring published math video lessons in both Swedish and English. These channels amassed a total of 17,063 subscribers, 912,798 views, and 30,610 viewing hours in 2022.

For more information about us, please visit mattecentrum.se.

To contact Mattecentrum, please send an email to: mathplanet@mattecentrum.se

Every contribution, no matter the size, has a significant impact on Mathplanet. We are dedicated to offering a free, accessible platform for learning mathematics. Your support helps us continue this mission and ensures that knowledge remains within reach for everyone. Thank you for being a part of our math-loving community
Click on the donation button and support Mattecentrum!

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Mathplanet.com is an online resource where one can study math for free. Take our high school math courses in Pre-algebra, Algebra 1, Algebra 2 and Geometry. We have also prepared practice tests for the SAT and ACT.

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Google sheets app is possibly the single most import technology application for K-12 math students to learn. This app is used to calculate and visually represent everything from elementary arithmetic to calculus.
Sheets can provide a concrete example of what variables and functions actually do.

Performance tasks
Projects
Experiential learning

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Create and collaborate on online spreadsheets in real-time and from any device.

Collaborate on data, from anywhere

Establish a ground truth for data in your online spreadsheet, with easy sharing and real-time editing. Use comments and assign action items to keep analysis flowing.

Get to insights faster with built-in intelligence

Assistive features like Smart Fill and formula suggestions help you analyze faster with fewer errors. And get insights quickly by asking questions about your data in simple language.

Seamlessly connect to other Google apps

Sheets is thoughtfully connected to other Google apps you love, saving you time. Easily analyze Google Forms data in Sheets, or embed Sheets charts in Google Slides and Docs. You can also reply to comments directly from Gmail and easily present your spreadsheets to Google Meet.

Extend collaboration and intelligence to Excel files

Easily edit Microsoft Excel spreadsheets online without converting them, and layer on Sheets' enhanced collaborative and assistive features like comments, action items, and Smart Fill.

Build custom solutions

Speed up workflows by building business apps and automations. Use AppSheet to build custom applications on top of Sheets, without writing code. Or add custom functions, menu items, and macros with Apps Script.

Always work with fresh data

With Sheets, everyone's always working on the latest version of a spreadsheet. And with edits automatically saved in version history, it's easy to undo changes or even see edit history of an individual spreadsheet cell.

Seamlessly connect to critical data

Pull in and analyze data from the other tools you use, like customer data from Salesforce. Enterprise customers can also use Connected Sheets to analyze billions of rows of BigQuery data in Sheets - without writing any code.

Security, compliance, and privacy

Secure by default

We use industry-leading security measures to keep your data safe, including advanced malware protections. Sheets is also cloud-native, eliminating the need for local files and minimizing risk to your devices.

Encryption in transit and at rest

All files uploaded to Google Drive or created in Sheets are encrypted in transit and at rest.

Compliance to support regulatory requirements

Our products, including Sheets, regularly undergo independent verification of their security, privacy, and compliance controls.

Private by design

Sheets adheres to the same robust privacy commitments and data protections as the rest of Google Cloud's enterprise services.

You control your data.

We never use your Sheets content for ad purposes.

We never sell your personal information to third parties.

Find the plan that's right for you

Google Sheets is a part of Google Workspace

Try Sheets for Work

For Personal (Free)

Business Standard

$12 USD

per user / month, 1 year commitment info Or $14.40 per user / month, when billed monthly

done

done

15 GB per user

2 TB per user

done

done

100 participants

150 participants

remove

done

Self-service online and community forums

24/7 online support and community forums

Collaborate from anywhere, on any device

Access, create, and edit your spreadsheets wherever you are - from any mobile device, tablet, or computer - even when offline.

Get a head start with templates

Choose from a variety of dashboards, project trackers, and other professionally-designed templates to kick things off quickly.

Invoice

Budget

Timeline

Grade Book

Invoice

Budget

Timeline

Grade Book

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Google Sheets: Online Spreadsheet Editor | Google Workspace

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Use Google Sheets to create and edit online spreadsheets. Get insights together with secure sharing in real-time and from any device.

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A website that  offers a comprehensive guide to using the basic to intermedidate math functions within Google Sheets (also applicable to MS Excel)

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/en/googlespreadsheets/working-with-multiple-sheets/content/

Introduction

When working with numerical information, Google Sheets can be used to perform calculations. In this lesson, you'll learn how to create simple formulas that will add, subtract, multiply, and divide values. You will also be introduced to the basics of using cell references in formulas.

Creating simple formulas

A convenient and time-saving feature of Google Sheets is its ability to add, subtract, multiply, and divide numerical information for you. Google Sheets uses mathematical expressions called formulas that make handling these calculations easy. In this lesson, we'll focus on formulas that contain one mathematical operator.

Most of the time, you will be using a cell's address in the formula. This is called using a cell reference. The advantage of using cell references is that you can change a value in a referenced cell and the formula will automatically recalculate. Using cell references in your formulas will make sure the values in your formulas are accurate.

Watch the video below to learn how to work with simple formulas in Google Sheets.

Mathematical operators

Google Sheets uses standard operators for formulas: a plus sign for addition (+), minus sign for subtraction (-), asterisk for multiplication (*), forward slash for division (/), and caret (^) for exponents.

All formulas must begin with an equals sign (=). This is because the cell contains-or is equal to-the formula and the value it calculates.

Using cell references

When a formula contains a cell address, it is using a cell reference. Creating a formula with cell references is useful because you can update the numerical values in cells without having to rewrite the formula.

By combining a mathematical operator with cell references, you can create a variety of simple formulas in Google Sheets. Formulas can also include a combination of a cell reference and a number.

Creating formulas

In our example, we'll use simple formulas and cell references to help calculate a budget.

To create a formula:

1. Select the cell that will display the calculated value.

2. Type the equals sign (=).

3. Type the cell address of the cell you want to reference first in the formula. A dotted border will appear around the cell being referenced.

4. Type the operator you want to use. For example, type the addition sign (+).

5. Type the cell address of the cell you want to reference second in the formula.

6. Press the Enter key on your keyboard. The formula calculates, and Google Sheets displays the result.

To see how the formula recalculates, try changing the value in either cell. The formula automatically displays the new value.

Google Sheets will not always tell you if your formula contains an error, so it's up to you to check all of your formulas. To learn how to do this, read our article on why you should Double-Check Your Formulas.

To create a formula using the point-and-click method:

Rather than type cell addresses, you can point and click the cells you want to include in your formula.

1. Select the cell that will display the calculated value.

2. Type the equals sign (=).

3. Click the cell you want to reference first in the formula. The address of the cell appears in the formula.

4. Type the operator you want to use in the formula. For example, type the multiplication sign (*).

5. Click the cell you want to reference second in the formula. The address of the cell appears in the formula.

6. Press the Enter key on your keyboard. The formula will be calculated, and the value will appear in the cell.

To edit a formula:

Sometimes you may want to modify an existing formula. In our example, we typed an incorrect cell address in our formula, so we need to correct it.

1. Double-click the cell containing the formula you want to edit. The formula will be displayed in the cell.

2. Make the desired edits to the formula. In our example, we will replace C4 with C5.

3. When you're finished, press the Enter key on your keyboard. The formula recalculates, and the new value displays in the cell.

Challenge!

1. Open our example file. Make sure you're signed in to Google, then click File > Make a copy.

2. Select the Challenge sheet.

3. In cell D4, create a formula that multiplies cells B4 and C4. Be sure to use cell references.

4. Use the fill handle to copy the formula to cells D5 and D6.

5. In cell D7, create a formula that adds cells D4, D5, and D6.

6. Change the quantity in cell B4 to 15. You should also see cells D4 and D7 change.

7. When you're finished, your spreadsheet should look something like this:

/en/googlespreadsheets/creating-complex-formulas/content/

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In Google Sheets simple formulas can help you calculate important data. Learn how to create simple formulas in Google Sheets.

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A game-ified online interactive quiz app with a unique look and feel. Many teachers prefer this app over Kahoot.

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A free web hosting site that teachers may use to create their own personal digital classrooms

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For those seeking quick videos rather the full modules

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"free online classes" "math tutorials" "science tutorials" "online education" "video classes" "arts and humanities videos" "online lessons" "online learning"

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Khan Academy is a 501(c)(3) nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. Our interactive practice problems, articles, and videos help students succeed in math, biology, chemistry, physics, history, economics, finance, grammar, and many other topics.

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Platform for creating your own customized video presentations.
- Stand alone or upload to Youtube

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Content Creation: Best Presentations, eCards & More | emaze

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Content creation with the help of AI. From amazing presentations and websites, to eCards and more, create beautiful visuals with our ready-to-use templates.

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Kahoot is a well known and commonly used resources for interactive online games.  Teachers typically create their own games.  Substitute teachers use them extensively for emergency lesson plans. 

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Kahoot is a well known and commonly used resources for interactive online games.  Teachers typically create their own games.  Substitute teachers use them extensively for emergency lesson plans. 

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They also have a vast library of premade subject specific games.