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Unit 4 - Lesson 6 - Grade 8: Illustrative Mathematics

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Last updated 2 months ago
13 Questions
Note from the author:
Grade 8 Unit 4
Lesson 6: Strategic Solving
CC BY 2021 Illustrative Mathematics®
Grade 8 Unit 4
Lesson 6: Strategic Solving
CC BY 2021 Illustrative Mathematics®
Lesson: Strategic Solving

Equal Perimeters (Warm Up)

The triangle and the square have equal perimeters.
1.

Find the value of x.

2.

What is the perimeter of each of the figures?

Predicting Solutions

Without solving, identify whether these equations have a solution that is positive, negative, or zero.
3.

4.

5.

6.

7.

8.

9.

Which Would You Rather Solve?

Here are a lot of equations:
10.

Without solving, identify 3 equations that you think would be least difficult to solve and 3 equations you think would be most difficult to solve. Be prepared to explain your reasoning.


11.

Choose 3 equations to solve. At least one should be from your "least difficult" list and one should be from your "most difficult" list.


Cool Down: Think Before You Step

Think Before You Step

12.

Without solving, identify whether this equation has a solution that is positive, negative, or zero: 3x - 5 = -3

13.

Solve the equation.