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Unit 3 - Lesson 3 - Grade 2: Illustrative Mathematics

Last updated 9 months ago
18 questions
Note from the author:
Grade 2 Unit 3
Lesson 3: Create and Use a Ruler
CC BY 2021 Illustrative Mathematics®
Grade 2 Unit 3
Lesson 3: Create and Use a Ruler
CC BY 2021 Illustrative Mathematics®
Lesson: Create and Use a Ruler

Number Talk: Subtract Two Digits (Warm Up)

Find the value of each expression mentally.
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Create a Ruler

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Use your tools to make a ruler that shows lengths in centimeters.

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Compare your ruler with your partner’s ruler.

Measure and Compare Lengths

Use your ruler to measure the length of each rectangle. Don’t forget to label your measurements.
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How many centimeters longer is rectangle A than rectangle B?

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How many centimeters longer is rectangle F than rectangle D?

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Which two rectangles are the longest? How long would the rectangle be if you joined them together?

Cool Down: Use a Ruler
Use your ruler to find the length of each rectangle and figure out how much longer Rectangle B is than Rectangle A. Record any lengths in centimeters.
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_______ centimeters
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_______ centimeters
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How much longer is Rectangle B than Rectangle A?

_______ centimeters