IM Unit 4 Lessons 1-2 8th Math

IM Unit 4 Lessons 1-2 8th Math

Lesson 4-1 Number Puzzles

Activity 1.2 Telling Temperatures

Read through the number puzzles and work backward to determine the correct answer.

Summary

Read the summary and highlight/underline key information.

Summary

Read the summary and highlight/underline key information.

Lesson 4-2 Keeping the Equation Balanced

Warm Up: 2.1

What do you notice? What do you wonder?

Activity 2.2 Hanging Blocks

The following pictures represent hangers that a balanced because the weight on each side is the same.

Open Ended

Elena takes two triangles off of the left side and three triangles off of the right side. Will the hanger still be balanced or will it tip to one side? Which side? How do you know?

Activity 2.3 More Hanging Blocks

The following pictures represent hangers that a balanced because the weight on each side is the same.

Multiple Choice

Find the weight of a pentagon on Hanger B, if a triangle weighs 3 grams and a circle weighs 6 grams.

• 1

• 2

• 3

• Any Number

Are you ready for more?

pg. 280

Open Ended

Is it realistic to have a weight of -3 grams? Explain.

Summary

Read the summary and highlight/underline key information.

Summary

Read the summary and highlight/underline key information.

Practice

Complete the following online and in your book pages 282-284.

Multiple Select

1. Which of the changes would keep the hanger in balance? Select all that apply.

• adding two circles on the left and one square on the right.

• adding 2 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

Multiple Select

2. Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and x represents the weight of each square. Select ALL equations that represent the hanger.

• x+x+x+x+11 = x +11.5

• 2x=0.5

• 4x+5+6=2x+2.5 + 6

• 2x+2.5=3

• 4x+ 2.5 +2.5+ 3 + 3= 2x +2.5 +3 + 3+ 3

Pg. 284

Complete problems 4 and 5 in your textbook.