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Lesson Plan
Illustrative Mathematics

Finding an Unknown Angle

For Teachers 4th - 6th Standards
Teach your class how to apply their knowledge of geometry as they explore the unknown. In order to find an unknown angle, learners must understand that rectangles have four interior right angles, that right angles have 90 degrees, and...
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Worksheet
Curated OER

Extra Practice 1.4: Algebraic Equations

For Students 9th - 12th
In this algebraic equations worksheet, students read given story problems, translate them into algebraic equations, draw models of the equation, and solve the problem.  This one-page worksheet contains 18 multi-step problems.
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Lesson Plan
Curated OER

Variables on Both Sides

For Teachers 9th - 10th
Students solve equations with variables on both sides of the equations. In this algebra lesson, students use addition, subtraction, multiplication and division to solve problems. They combine like terms and identify the unknown.
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Worksheet
Curated OER

Combining Like Terms and Solving

For Students 8th - 9th
In this combining like terms and solving worksheet, students combine terms in simple algebraic equations and solve for the unknown. When needed, students may observe step-by-step instructions to solve given equations. There are 20...
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Lesson Plan
Willow Tree

Direct and Inverse Variations

For Students 7th - 10th Standards
Enhance pupil understanding of proportions and variable relationships by studying direct and inverse variation. Use the idea of a proportional relationship to teach direct variation. Then use a similar pattern to help individuals...
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Lesson Plan
EngageNY

Word Problems Leading to Rational Equations

For Students 10th - 12th Standards
Show learners how to apply rational equations to the real world. Learners solve problems such as those involving averages and dilution. They write equations to model the situation and then solve them to answer the question — great...
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Worksheet
Math eBook

Solve Algebraic Equation Worksheet

For Students 7th - 9th
In this online algebraic equation worksheet, learners solve for the unknown in both one-step and two-step equations. This four-page document contains 20 multistep problems that can be used on-line or printed as a worksheet.
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Worksheet
Curated OER

Multiplication and Division Equations

For Students 4th - 6th
There is only one introductory algebra word problem here and an explanation is detailed below. Because of this format, consider projecting it as an all-class warm up. Learners examine a scenario where Sam can fill a box in three minutes,...
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Worksheet
Curated OER

Quiz: Solve for the Unknown - Logarithms

For Students 10th - 12th
In this logarithm worksheet, students solve for the unknown. With the assistance of a graphing calculator, they identify the value of one variable. This one-page worksheet includes ten problems which contain one variable with integers.
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Worksheet
Curated OER

Bingo - Solving Equations

For Students 9th - 10th
In this solving equations worksheet, students simplify equations containing fractions and variables on both sides and then solve for the unknown. This two-page worksheet contains 25 multi-step problems.
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Worksheet
Curated OER

Speed and Experiments

For Students 9th - 12th
In this speed and experiments instructional activity, students read about how to calculate the speed by using the change in distance divided by the change in time. They also read about experimental design and scientific method. Students...
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Lesson Plan
Curated OER

Solving Equations Mixed Review

For Teachers 7th - 12th
Young scholars solve linear equations with two steps. In this algebra lesson, students isolate the variable and solve for the unknown using division, multiplication, addition and subtraction.
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Worksheet
Curated OER

Using Positive Numbers

For Students 9th - 12th
In this solving equations worksheet, learners solve 70 short answer problems. Students solve each equation for the unknown variable by simplifying like terms and isolating the variable.
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Worksheet
Curated OER

Algebraic Equation

For Students 6th - 8th
In this algebraic equation worksheet, students solve simple, one-step algebraic equations.  This one-page worksheet contains 9 problems.  Answers are provided at the bottom of the page.
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Worksheet
Curated OER

Simple Algebra Word Problems

For Students 6th - 8th
In this math instructional activity, students find the correct algebraic expression for each of the six word problems. Then they solve for the unknown variables.
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Lesson Plan
Curated OER

Solving Radical Equations

For Teachers 6th - 8th
In this math worksheet, young scholars solve the equations using radicals by raising each one to the power of 2.Then they apply the rules of equality to find the unknown variable.
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Lesson Plan
Curated OER

Representing the Unknown

For Teachers 6th - 8th
Student use mental math to solve linear equations. In this algebra lesson, students solve one and two steps equations. They write expressions using variables to identify the unknown.
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Worksheet
Curated OER

Solving Systems of Equations

For Students 9th
In this systems of equations worksheet, 9th graders solve and complete 19 different problems. First, they solve each of the given equations. Then, students set the equations up in standard form and enter the coefficients of x and y. They...
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Lesson Plan
Curated OER

Solving One Step Equations Using Algebra Tiles

For Teachers 8th - 10th
Students solve linear equations. In this algebra lesson, students solve equations using addition, subtraction, division and multiplication. They evaluate and simplify functions.
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Lesson Plan
Curated OER

Equations in the Park

For Teachers 3rd - 4th
Students explore algebraic concepts using real life situations.  In this equations lesson, students develop strategies to solve missing number problems. Students participate in a board game based on algebraic equations.
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Worksheet
Curated OER

Test #2 Equations Review

For Students 7th - 9th
In this equations review worksheet, students solve algebraic equations with one variable.  They use inverse operations to solve for the unknown.  Students translate word sentences to number sentences and then solve.  This two-page...
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Worksheet
Curated OER

Multi-Step Equations

For Students 7th - 9th
In this multi-step equation instructional activity, students solve algebraic equations with variables on both sides. They simplify the equation by collecting like terms and then solve for the unknown. This two-page instructional activity...
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Worksheet
Curated OER

Multi-Step Equations

For Students 8th - 9th
In this multi-step equation, students solve for the unknown. Equations contain at least two operations, addition, subtraction and/or multiplication. Students use their algebra steps to solve 26 problems on the two pages. The remaining...
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Worksheet
Curated OER

Two-Step Equations with Decimals

For Students 8th - 9th
For this two-step equation worksheet, students use two-steps to solve for the unknown. Problems involving using addition, subtraction addition, and multiplication. This worksheet contains 18 problems and does contain an answer key.