G1 U9 L3 SJ

Applied MP

MPs * Embedded MP

Conceptual Lesson Grade 1 · Unit 9 · Lesson 3 MC: 1.OA.6

1

2

*



3

4

5

6

7



Today, I will use a number line to subtract.

Vocabulary

Notes

Number line:

When you subtract, you move to the left on the number line.

Count back:

0

1

2

3

4

5

6

7

8

9 10 11 12

10 — 5 = 5

Copyright © Swun Math

Grade 1 Unit 9 Lesson 3 C SJ

8

*

/ Directions: Use a number line to subtract.

1.

9—7=

0

1

2

3

4

5

6

7

8

9

10

11 12 13 14 15 16

10

11 12 13 14 15 16

2.

11 — 6 =

0

Copyright © Swun Math

1

2

3

4

5

6

7

8

9

Grade 1 Unit 9 Lesson 3 C SJ

Directions: Use a number line to subtract.

1. Solve the problem by using a number line.

9—6= 0

1

2

3

4

5

6

7

8

9

10

11 12 13 14 15 16

2. Solve the problem by using a number line.

12 — 9 = 0

1

2

3

4

5

6

7

8

9

10

11 12 13 14 15 16

*MP3: Do you agree/disagree with what

said?

*MP6: How do you know your answers are correct/reasonable?

Recap today’s lesson with one or more of the following MP questions: MP2: What steps helped you solve your problems? MP5: What tool did you use to help you solve the problems? MP8: Did you use any shortcuts to solve the problems?

Copyright © Swun Math

Grade 1 Unit 9 Lesson 3 C SJ

Copyright © Swun Math

Grade 1 Unit 9 Lesson 3 C SJ