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Unit 3 - Lesson 1 - Grade 3: Illustrative Mathematics

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Last updated 2 months ago
10 Questions
Note from the author:
Grade 3 Unit 3
Lesson 1: Represent Numbers in Different Ways
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 3
Lesson 1: Represent Numbers in Different Ways
CC BY 2021 Illustrative Mathematics®
Lesson: Represent Numbers in Different Ways

Which One Doesn’t Belong: Numbers within 1,000 (Warm Up)

1.

Card Sort: Numbers in Their Different Forms

Directions:
  • Your teacher will give you a set of cards that show numbers in different forms.
  • Match the cards that represent the same number.
2.

Record your matches here.

3.

Explain your reasoning.

Numbers in Different Forms Round Table

Part 1

4.

In Box 1, write a three-digit number.

(Pause for your teacher's instructions.)

5.

In Box 2, show a way that the number could be decomposed.

(Pause for your teacher's instructions.)

6.

In Box 3, show a way that the number could be decomposed that’s different from Box 2.

(Pause for teacher instructions.)

7.

In Box 4, show a way that the number could be decomposed that’s different from Boxes 2 and 3.

Part 2

8.

Look at the different ways your number was decomposed on your recording sheet. What connections do you see between them?

9.

Look at all of the recording sheets for your group. What patterns do you notice in the ways the numbers are decomposed?

Cool Down: Let Me Count the Ways
10.

Select all the ways you could represent two hundred fifty-seven.