G1 U4 L3 SJ

Applied MP

MPs * Embedded MP

Conceptual Lesson Grade 1 · Unit 4 · Lesson 3

1

2

3

*  *

4

5

6

7

 *

MC: 1.OA.1

position.

Today, I will solve equations with unknowns in the first or second

Vocabulary

Steps

Missing addend in the first position:

Y+5=8

Y= 3

1. Identify the unknown. 2. Use a drawing to solve for the unknown. 3. Record the unknown.

Drawing

Y= 3

Missing addend in the second position:

4+☐=9 Drawing

☐= 5

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Grade 1 Unit 3 Lesson 13 C SJ

8

*

/ Directions: Use counters and drawings to solve equations with unknowns in the first and second position.

1.

.

+4=8

.

=

7 + M = 11

2.

Drawing

M=

Copyright © Swun Math

Grade 1 Unit 4 Lesson 3 C TE

Directions: Use counters and drawings to solve equations with unknowns in the first and second position.

1. Use counters to solve for the unknown.

X+3=7 X= 2. Use a drawing to solve for the unknown.

2+

=9

Drawing

= *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: MP1: How did drawings help you in today’s lesson? MP2: What is a real life scenario you could apply? MP5: What strategy could you use to make the calculation easier?

Copyright © Swun Math

Grade 1 Unit 4 Lesson 3 C TE