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IM K-5 Math
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6-8 Grade 8 Unit 4 Lesson 2

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K-5 Math •6-8 Math 9-12 Math

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Grade 6 Grade 7 •Grade 8

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Unit 1 Unit 2 Unit 3 •Unit 4 Unit 5 Unit 6 Unit 7 Unit 8 Unit 9

Lesson

Lesson 1 •Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 Lesson 10 Lesson 11 Lesson 12 Lesson 13 Lesson 14 Lesson 15 Lesson 16

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9-12

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Accelerated 7

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Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Unit 9

Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10
Lesson 11
Lesson 12
Lesson 13
Lesson 14
Lesson 15
Lesson 16

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Unit 4, Lesson 2

Keeping the Equation Balanced

Grade 8

Practice

Problem 1
Student Task Statement
Which of the changes keeps the hanger in balance?

Select all that apply.

Adding two circles on the left and a square on the right

Adding two triangles to each side

Adding two circles on the right and a square on the left

Adding a circle on the left and a square on the right

Adding a triangle on the left and a square on the right
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Lesson 2 Resources

Student Materials Student Materials in Spanish

Problem 2

Student Task Statement

Here is a balanced hanger diagram.

Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and represents the weight of each square. Select all equations that represent a balanced hanger.

<p>A balanced hanger. Left side, 4 squares, 2 triangles, 2 circles. Right side, 2 squares, 1 triangle, 3 circles.</p><br>

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Problem 3

Student Task Statement

What is the weight of a square if a triangle weighs 4 grams?

Explain your reasoning.

<p>Balanced hanger. Left side, 1 triangle, 2 squares. Right side, 3 triangles, 1 square. </p><br>

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Problem 4

ForLesson 8: Translating to

Student Task Statement

These two lines are parallel. Write an equation for each.

<p>Two lines in an x y plane. </p><br>

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Problem 5

ForLesson 1: Writing Equivalent Equations

Student Task Statement

Label the arrows to describe each move.

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