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Unit 6 - Lesson 2 - Grade 3: Illustrative Mathematics

Last updated 9 months ago
5 questions
Note from the author:
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.
1

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.
1

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?
1

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

1

What is the length of the pencil?