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Applied MP

MPs * Embedded MP

Procedural Lesson Grade 1 · Unit 10 · Lesson 12

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MC: 1.OA.1 Student Journal Pages

131-138

Today, I will solve “how many more?” comparing word problems where the difference is unknown.

Vocabulary

Teacher Resources

Compare Difference Unknown – How many more word problems: There are 6 brown horses. There are 5 white horses. How many more brown horses are there than white horses?

6-5=W Unknown Solve for the unknown:

6—5=1 W=1 This problem can also be solved as a missing addend problem.

5+W=6 W=1

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Considerations: Students need to be exposed to many ways to represent the unknown (empty box, letters, and symbols). This type of word problem can be solved as a subtraction equation or a missing addend equation.

Steps: 1. Listen carefully to the numbers in the word problem. 2. Use the numbers to write an equation using a symbol or letter to represent the unknown. 3. Solve for the unknown.

Application of MPs: MP2: What math symbol can you use today? MP6: How do you know your answers are correct? MP7: What steps help you solve the problems?

Grade 1 Unit 10 Lesson 12 P TE

Answer Key: I/M

SGP

FCU

SP

1. Equations may

1. Equations may

1. Equations may

1. Equations may

vary. X= 2

vary. =8

vary. H= 6

vary.

CH

HW

1. Answers will

1. Equations may

vary.

vary.

X= 4

=2

2.

Equations may

2. Equations may

vary. =3

vary. Y= 3

2. Equations may vary.

=9

2. Equations may vary. X= 2

vary. Y= 4

6. No.  = 3

=1

3. Equations may vary. Y= 5

4. Equations may vary.

=3

5. Equations may

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vary.

=2

4. Equations may vary.

2. Equations may

vary.

3. Equations may vary.

2. Answers will

5.

No.

 =6

=3

6. Answers will vary.

Grade 1 Unit 10 Lesson 12 P TE

/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Use drawings and equations to solve for the unknown.

1. Gregory caught 5 baseballs. Dean caught 7 baseballs. How many more baseballs did Dean catch than Gregory? Drawings:

Equation

X= 2. Jade picked 9 flowers. Her sister picked 6 flowers. How many more flowers did Jade pick than her sister? Drawings:

Equation

= MP2: What math symbol did you use today? MP6: How do you know your answers are correct? MP7: What steps helped you solve the problems? Copyright © Swun Math

Grade 1 Unit 10 Lesson 12 P TE

/ Directions: Use drawings and equations to solve for the unknown.

1. There are 10 gray birds and 2 blue birds. How many more gray birds are there than blue birds? Drawings:

Equation

= 2. Brent has 8 games. Carter has 11 games. How many more games does Carter have than Brent? Drawings:

Equation

Y= MP2: What math symbol did you use today? MP6: How do you know your answers are correct? MP7: What steps helped you solve the problems? Copyright © Swun Math

Grade 1 Unit 10 Lesson 12 P TE

Directions: Use drawings and equations to solve for the unknown.

1. Grace has 7 points. Amy has 1 point. How many more points does Grace have than Amy? Drawings:

Equation

H= 2. The playground has 3 slides and 12 swings. How many more swings are there than slides? Drawings:

Equation

=

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Grade 1 Unit 10 Lesson 12 P TE

Name: ____________________________ Directions: Use drawings and equations to solve for the unknown.

Date: ______________________________

1. There are 8 cats and 6 birds at the pet store. How many more cats are there than birds? Drawings:

Equation

= 2. Jamie has 11 red papers and 9 blue papers. How many more red papers are there than blue papers? Drawings:

Equation

X= Copyright © Swun Math

Grade 1 Unit 10 Lesson 12 P TE

Directions: Use drawings and equations to solve for the unknown.

3. Mom buys 4 oranges and 6 lemons. How many more lemons did she buy than oranges? Drawings:

Equation

= 4. Kenny saw 4 ladybugs and 1 caterpillar. How many more ladybugs are there than caterpillars? Drawings:

Equation

=

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Grade 1 Unit 10 Lesson 12 P TE

Directions: Use drawings and equations to solve for the unknown.

5. Jonah draws 3 pictures. His cousin draws 7 pictures. How many more pictures did his cousin draw? Drawings:

Equation

Y= 6. Can = 17? If not, solve for the unknown. Kylie ran for 10 minutes. Mia ran for 7 minutes. How many more minutes did Kylie run than Mia?

 = 17

Yes

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No

Equation

=

Grade 1 Unit 10 Lesson 12 P TE

Copyright © Swun Math

Grade 1 Unit 10 Lesson 12 P TE

Directions: Choose numbers to complete the word problem. Fill in all the blanks. Solve for the unknown.

1. Taylor watched

movies. Jackson watched

How many more movies did

movies. watch than

? Drawings:

Equation



=

2. Quinlyn sang

songs. Abigail sang

many more songs did

songs. How sing than

? Drawings:

Equation

X= Copyright © Swun Math

Grade 1 Unit 10 Lesson 12 P TE

*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 math symbol did you use today? MP6: How did you know your answers were correct? MP7: What steps helped you solve the problems?

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Grade 1 Unit 10 Lesson 12 P TE

Name: ____________________________ Directions: Use drawings and equations to solve for the unknown.

Date: ______________________________

1. Bob jumped 13 times. Gavin jumped 9 times. How many more times did Bob jump than Gavin? Drawings:

Equation

X= 2. Mom made 8 chocolate cookies and 9 peanut butter cookies. How many more peanut butter cookies did she make than chocolate cookies? Drawings:

Equation

=

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Grade 1 Unit 10 Lesson 12 P TE

Directions: Use drawings and equations to solve for the unknown.

3. Sloan read 10 books. Her cousin read 5 books. How many more books did Sloan read than her cousin? Drawings:

Equation

Y= 4. Adrian hit 9 balls. His dad hit 15 balls. How many more balls did his dad hit? Drawings:

Equation

= Copyright © Swun Math

Grade 1 Unit 10 Lesson 12 P TE

Name: ____________________________ Date: ______________________________

Directions: Use drawings and equations to solve for the unknown.

5. Can  = 17? If not, solve for the unknown. Kylie ran for 10 minutes. Mia ran for 7 minutes. How many more minutes did Kylie run than Mia?

Equation

 = 17 Yes

=

No

6. Choose numbers to complete the word problem. Fill in all the blanks. Solve for the unknown.

There are

green apples and

many more

yellow apples. How

apples are there than apples?

Drawings:

Equation

W=

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Grade 1 Unit 10 Lesson 12 P TE