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Unit 3 - Lesson 1 - Grade 3: Illustrative Mathematics

Last updated 9 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.
1

Record your matches here.

1

Explain your reasoning.

Numbers in Different Forms Round Table

Part 1

1

In Box 1, write a three-digit number.

(Pause for your teacher's instructions.)

1

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

(Pause for your teacher's instructions.)

1

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

(Pause for teacher instructions.)

1

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

Part 2

1

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

1

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
1

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