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Unit 6 - Lesson 2 - Grade 3: Illustrative Mathematics

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5 Questions
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Grade 3 Unit 6
Lesson 2: Measure in Fourths of an Inch
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 6
Lesson 2: Measure in Fourths of an Inch
CC BY 2021 Illustrative Mathematics®
Lesson: Measure in Fourths of an Inch

Estimation Exploration: Measure in Inches (Warm Up)

1.

What is the length of the paper clip?

Record an estimate that is:

Partition Inches into Fourths

You will need the ruler that was not partitioned in an earlier activity.

With your partner, partition the ruler to show fourths of an inch.
2.

Take turns using this ruler to measure the length of 4 objects around the room.

Find Some Lengths

You will need the rulers you partitioned for this activity.

With your partner:
  • Find at least 4 objects in the classroom that have the lengths shown in the table.
  • Practice saying each measurement.
  • Record the object in the table. If you find an object that is a whole number plus a fraction of an inch, write the exact measurement.
3.

Record the object in the table. If you find an object that is a whole number plus a fraction of an inch, write the exact measurement.

Cool Down: Which Ruler?
4.

Which ruler would you use to measure the length of the pencil? Explain your reasoning.

5.

What is the length of the pencil?