Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Letter Replacement (Division)

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] In this learning module, students must solve equations to find the value of one or more unknowns, then determine the value of another unknown using division....
Activity
United Nations

Unesco: Algebra Review (In Arabic)

For Students 6th - 9th
This page, part of a larger UNESCO site on math and science education, has 15 basic, open- and multiple-choice algebra questions, with the correct answer immediately following the question. Entirely in Arabic.
Activity
TeachEngineering

Teach Engineering: The Balancing Act

For Teachers 6th - 8th
Students are given the opportunity to visualize and interact with concepts they have already learned, specifically algebraic equations and solving for unknown variables. Students construct a balancing seesaw system (LEGO Balance Scale)...
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Other

Greg Tang Math: Word Problems

For Students 2nd - 8th Standards
Create math problems with this word problem generator. Just choose your operation, problem, unknown variable, and number range to create one problem or a list of 10 problems. Answers can be checked online or problems can be printed.
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Wyzant

Wyzant: Algebra Help

For Students 9th - 10th Standards
Heres a comprehensive review of the basics of algebra. WyzAnt includes lessons on varied topics, calculators that show step-by-step solutions, and interactive worksheets for practicing and testing your skills. Just choose a topic and use...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A ced.a.4: Equations and Formulas

For Teachers 9th - 10th Standards
In this exercise, students will use inverse operations to solve the equations for the unknown variable, or for the designated variable if there is more than one. Aligns with A-CED.A.4.
Activity
Illustrative Mathematics

Illustrative Mathematics: 3.oa the Class Trip

For Teachers 2nd - 4th Standards
The purpose of this instructional task is for students to solve a two-step word problem and represent the unknown quantity with a variable. This task also addresses the concept of scarcity. Aligns with CCSS.Math.Content.3.OA.D.8 Solve...
PPT
Sophia Learning

Sophia: Rhombi Practice Problems: Lesson 4

For Students 9th - 10th
This lesson will provide examples that use the characteristics of rhombi to solve for unknown variables, side lenths, and angle measures. It is 4 of 5 in the series titled "Rhombi Practice Problems."
PPT
Sophia Learning

Sophia: Segment Bisectors Problems: Lesson 1

For Students 9th - 10th Standards
This lesson will demonstrate how to solve for unknown variables and segment lengths in problems that involve midpoint and segment bisectors. It is 1 of 5 in the series titled "Segment Bisectors Problems."
PPT
Sophia Learning

Sophia: Triangle Proportionality Theorem: Lesson 4

For Students 9th - 10th Standards
This lesson presents how to apply the triangle proportionality theorem to solve for unknown variables and side lengths. It is 4 of 6 in the series titled "Triangle Proportionality Theorem."