G1 U11 L15 SJ
Applied MP
MPs * Embedded MP
Procedural Lesson Grade 1 · Unit 11 · Lesson 15
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MC: 1.OA.7
Today, I will determine whether equations involving addition and subtraction are true or false.
Vocabulary True: any equation where the quantity on the left and the right side are equal 7=7 12 = 7 + 5 5 + 7 = 12 6+6=5+7
Steps 1. Determine the quantity of each side of the equal sign in each equation. 2. Find the equation that is true (or not true).
False: any equation where the quantity on the left and right side are not equal 10 = 7 + 2
Explanation: this equation is false because 10 does not equal 9
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
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/ Directions: Determine which equation is true or false. Explain your thinking.
1. Circle the equation that is false. Explain how you know it is false.
9-6=2+5
13 - 3 = 9 + 1
2+5=7+0
Explanation:
2. Circle the equation that is true. Explain how you know it is true.
12 - 6 = 5 + 8
3+8=8-4
3+3=2+4
Explanation:
MP2: What steps helped you solve your problems? MP4: How do you know your answers are correct? MP8: What strategies did you use to help solve your problems?
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
Directions: Determine which equation is true or false. Explain your thinking.
1. Circle the equation that is true. Explain how you know it is true.
4+0=8-7
8+3=5+5
9+5=7+7
Explanation:
2. Circle the equation that is false. Explain how you know it is false.
13 = 7 + 6
6 - 6 = 10 - 9
12 - 9 = 0 + 3
Explanation:
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
Name: ____________________________ Directions: Determine which equation is true or false. Explain your thinking.
Date: ______________________________
1. Circle the equation that is false. Explain how you know it is false.
12 - 8 = 2 + 2
4+3=6+1
17 = 9 + 9
Explanation:
2. Circle the equation that is true. Explain how you know it is true.
14 - 5 = 6 - 3
7+8=6+9
11 = 7 + 2
Explanation:
3. Circle the equation that is false. Explain how you know it is false.
13 - 7 = 2 + 5
4 + 9 = 10 + 3
5+5=2+8
Explanation:
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
Directions: Determine which equation is true or false. Explain your thinking.
4. Circle the equation that is true. Explain how you know it is true.
9 + 2 = 3 + 10
8 + 6 = 10 - 7
11 - 1 = 2 + 8
Explanation:
5. Circle the equation that is true. Explain how you know it is true.
4 + 7 = 12 - 1
10 - 7 = 6 + 1
5+6=8+4
Explanation:
6. Is the circled equation 6 - 2= 5 + 4 true? If not, circle the equation that is true.
True 6-2=5+4 Yes
Copyright © Swun Math
2+7=3+3
8 + 8 = 6 + 10
No
Grade 1 Unit 11 Lesson 15 P SJ
1. Write 2 equations that are true and 1 equation that is false. Explain why it is false.
Explanation: 2. Write 2 equations that are false and 1 equation that is true. Explain why it is true.
Explanation:
*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? MP4: How did you know your answers were correct? MP8: What strategies did you use to help solve your problems?
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
MPs * Embedded MP
Procedural Lesson Grade 1 · Unit 11 · Lesson 15
1
2
3
4
*
*
*
5
6
7
*
MC: 1.OA.7
Today, I will determine whether equations involving addition and subtraction are true or false.
Vocabulary True: any equation where the quantity on the left and the right side are equal 7=7 12 = 7 + 5 5 + 7 = 12 6+6=5+7
Steps 1. Determine the quantity of each side of the equal sign in each equation. 2. Find the equation that is true (or not true).
False: any equation where the quantity on the left and right side are not equal 10 = 7 + 2
Explanation: this equation is false because 10 does not equal 9
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
8
*
/ Directions: Determine which equation is true or false. Explain your thinking.
1. Circle the equation that is false. Explain how you know it is false.
9-6=2+5
13 - 3 = 9 + 1
2+5=7+0
Explanation:
2. Circle the equation that is true. Explain how you know it is true.
12 - 6 = 5 + 8
3+8=8-4
3+3=2+4
Explanation:
MP2: What steps helped you solve your problems? MP4: How do you know your answers are correct? MP8: What strategies did you use to help solve your problems?
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
Directions: Determine which equation is true or false. Explain your thinking.
1. Circle the equation that is true. Explain how you know it is true.
4+0=8-7
8+3=5+5
9+5=7+7
Explanation:
2. Circle the equation that is false. Explain how you know it is false.
13 = 7 + 6
6 - 6 = 10 - 9
12 - 9 = 0 + 3
Explanation:
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
Name: ____________________________ Directions: Determine which equation is true or false. Explain your thinking.
Date: ______________________________
1. Circle the equation that is false. Explain how you know it is false.
12 - 8 = 2 + 2
4+3=6+1
17 = 9 + 9
Explanation:
2. Circle the equation that is true. Explain how you know it is true.
14 - 5 = 6 - 3
7+8=6+9
11 = 7 + 2
Explanation:
3. Circle the equation that is false. Explain how you know it is false.
13 - 7 = 2 + 5
4 + 9 = 10 + 3
5+5=2+8
Explanation:
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
Directions: Determine which equation is true or false. Explain your thinking.
4. Circle the equation that is true. Explain how you know it is true.
9 + 2 = 3 + 10
8 + 6 = 10 - 7
11 - 1 = 2 + 8
Explanation:
5. Circle the equation that is true. Explain how you know it is true.
4 + 7 = 12 - 1
10 - 7 = 6 + 1
5+6=8+4
Explanation:
6. Is the circled equation 6 - 2= 5 + 4 true? If not, circle the equation that is true.
True 6-2=5+4 Yes
Copyright © Swun Math
2+7=3+3
8 + 8 = 6 + 10
No
Grade 1 Unit 11 Lesson 15 P SJ
1. Write 2 equations that are true and 1 equation that is false. Explain why it is false.
Explanation: 2. Write 2 equations that are false and 1 equation that is true. Explain why it is true.
Explanation:
*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? MP4: How did you know your answers were correct? MP8: What strategies did you use to help solve your problems?
Copyright © Swun Math
Grade 1 Unit 11 Lesson 15 P SJ
