Interactive
Mangahigh

Mangahigh: Jabara: Algebraic Simplification

For Students 6th - 8th Standards
Learn about the origins of algebra when you travel to Baghdad in the 9th century. You will have algebra problems to solve by moving terms around and simplifying numbers, until you have just the value of the variable left.
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Khan Academy

Khan Academy: Manipulate Formulas

For Students 9th - 10th Standards
Solve multi-variable formulas for a specific variable in order to solve some word problems.
Activity
CK-12 Foundation

Ck 12: Mental Math for Addition and Subtraction Equations

For Students 6th - 9th Standards
[Free Registration/Login Required] Students will use a real world example to solve single variable equations mentally. Click challenge me to answer a practice question and click learn more to watch a video.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Multi Step Equations

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Solve equations that involve more than two steps to isolate the variable.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A ced.a.4: Rewriting Equations

For Teachers 9th - 10th
The goal of this task is to manipulate equations in order to solve for a specified variable. Aligns with HSA-CED.A.4.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Equations With Radicals on Both Sides

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Solve equations that involve more than one radical expression.
Handout
Purple Math

Purplemath: Partial Fraction Decomposition: General Techniques

For Students 9th - 10th Standards
Partial-fraction decomposition is the process of starting with the simplified answer and taking it back apart, of "decomposing" the final expression into its initial polynomial fractions. This reference material demonstrates the...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 6.ee Busy Day

For Teachers 5th - 8th
This problem can be solved using simple arithmetical reasoning but is also naturally represented by a simple equation. Thus, it provides a good entry point for learners into representing quantities in contexts with variables and...
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Khan Academy

Khan Academy: Two Step Equations

For Students 6th - 8th
Practice solving equations that take two steps to solve. For example, solve -16 = x/4 + 2. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Two Step Equations With Decimals and Fractions

For Students 6th - 8th
Practice solving equations that take two steps to solve. These problems involve arithmetic with fractions and decimals. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...
Unit Plan
Khan Academy

Khan Academy: Find the Mistake: Two Step Equations

For Students 6th - 8th
Practice spotting the mistake in someone else's work as they attempt to solve two-step equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
University of Cambridge

University of Cambridge: Nrich: Heads and Feet

For Students 3rd - 8th Standards
Solve this problem about hens and sheep and practice your algebraic thinking all at the same time. A solution is provided at this one page website.
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Khan Academy

Khan Academy: Interpret Two Step Equation Word Problems

For Students 7th Standards
Practice these problems and interpret two-step equation word problems.
Activity
Lesson Tutor

Lesson Tutor: A Beginning Look at Basic Algebra

For Students 9th - 10th Standards
Twelve lessons are provided as an introduction to basic algebra. Each covers the topic clearly, providing examples with explanations as well as practice problems and their solutions for the user. Topics highlighted here include: solving...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Raising a Product or Quotient to a Power

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Evaluate radical expressions and write them in simplest radical form.
Activity
Texas Instruments

Texas Instruments: Walking the Line

For Teachers 9th - 10th Standards
In this activity, students use linear functions to model and solve problems in situations with slope and a constant rate of change. They learn to represent situations with variables in expressions, equations, and inequalities and use...
Activity
Texas Instruments

Texas Instruments: Quadratic Equations With the Cbl 2

For Teachers 9th - 10th
Students will generate parabolas using the motion sensor. They will then determine the vertex form of the equation and compare it to the regression equation from the calculator.
Lesson Plan
Can Teach

Can Teach: Target: An Equations Game

For Teachers Pre-K - 1st Standards
Using decks of cards and knowledge of number operations, learners develop multi-step equations to reach a target number.
Activity
Harvey Mudd College

Mudd Math Fun Facts: Pascal's Triangle

For Students 3rd - 8th Standards
This tutorial defines and and demonstrates Pascal's triangle.
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Education Place

Houghton Mifflin: Eduplace: Extra Practice Quiz Using Formulas 2

For Students 3rd - 8th Standards
Practice picking and using the correct formula for finding the solution for each of the examples presented. Read the interactive quiz rules and then click on the "Begin" ticket. If you answer incorrectly you get one more chance to try...