G1 U4 L6 TE
Applied MP
MPs * Embedded MP
Conceptual Lesson Grade 1 · Unit 4 · Lesson 6
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MC: 1.OA.1 Student Journal Pages
220-222
Today, I will solve word problems by writing equations with unknowns in the first or second position.
Vocabulary Missing Addend Word Problem
First Addend Missing: In the basket, there are some apples and 5 oranges. In all, there are 8 pieces of fruit. How many apples are in the basket?
Y+5=8
Teacher Resources Considerations: Missing addends can be represented by any letter or symbol.
Steps: 1. 2. 3. 4.
Listen carefully to the word problem. Write the equation with the unknown. Solve for the unknown. Record the unknown.
Application of MPs: Second Addend Missing: Andy has 6 books. Savannah has some books. Altogether, they have 12 books. How many books does Savannah have?
MP1:
What steps were used today?
MP2: What is a real life scenario you could apply? MP7: Is there another way I can help see this problem?
6 + = 12
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
Answer Key: I/M
SGP
1. x + 3 = 7; x=4
1. 6 +
2.
8+
= 9;
=1
FCU = 8;
=2
2. 2 + Z = 7; Z = 5
1. W + 5 = 10; W = 5
2. 2 +
= 11;
=9
HW 1. 6 + 8 6+4+4 10 + 4 14
2. 9 + 5 9+1+4 10 + 4 14
3. Answers may vary due to the commutative property. Sample answer: 7+4 7+3+1 10 + 1 11
4. Answers may vary due to the commutative property. Sample answer: 5+8 5+5+3 10 + 3 13
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Use objects and drawings to solve the following word problem. Solve for the unknown.
1. Katie had some puppies. Jen gave her 3 more and now she has 7. How many puppies did Katie start with?
State the objective: Today, I will solve word problems with missing addends in the first or second position.
Explain that the first step is to carefully listen to the word problem to get the information needed to write down the equation.
Model how to record the equation with the missing addend represented with a letter or symbol: X + 3 = 7 X=
Explain that the next step is to solve for X or the missing addend.
Model how to start at 3, the known addend, and count on using counters until 7 is reached (3…4, 5, 6, 7). Counters represent the puppies that Katie started with, or the missing addend.
Record X = 4.
2. Amy had 8 pencils in her desk. She found some pencils on the floor. Now she has 9 pencils. How many pencils did she find on the floor?
Restate the objective: Today, I will solve word problems with missing addends in the first or second position.
Explain that the first step is to carefully listen to the word problem to get the information needed to find the sum.
Model how to record the equation with the missing addend represented with a letter or symbol: 8 + = 9 =
Explain that the next step is to solve for
Model how to start at 8, the known addend, and count on using drawings until 9 is reached (8… 9).
Record
=1
8+ Drawing
Copyright © Swun Math
or the missing addend.
=9 =1
Grade 1 Unit 4 Lesson 6 C TE
/ Directions: Use objects and drawings to solve the following word problem. Solve for the unknown.
1. The teacher had 6 paperclips. She got some more from the office and now she has 8 paperclips. How many paperclips did she get from the office?
Restate the objective.
Direct the students to listen the word problem, record the equation with the unknown, and solve with counters for the missing addend.
6+
=8 =2
2. Anh had some blue gumballs. She had 2 red gumballs. If she had 7 gumballs in all, how many blue gumballs did she have?
Restate the objective.
Direct the students to listen to the word problem, record the equation with the missing addend, and solve with drawings for the missing addend.
Z+2=7 Drawing
Z=
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
Directions: Use objects and drawings to solve the following word problem. Solve for the unknown.
1. A group of kids have some tennis balls. They also have 5 baseballs. In all they have 10 balls. How many tennis balls do they have?
W + 5 = 10 Drawing
W= 2. There were 2 star stickers. There were some heart stickers. Altogether, there were 11 stickers. How many heart stickers were there?
2+
= 11 =
*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 6 C TE
Name: ____________________________ Directions: Review using base ten frames to find sums.
Date: ______________________________
1. Use base ten frames to break apart a number to make 10 and find a sum. Complete the table.
6+8= 6+8= 6+8= 6+8=
6+4+4 10 + 4
2. Use base ten frames to break apart a number to make 10 and find a sum. Complete the table.
9+5= 9+5= 9+5= 9+5= Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
3. Break apart a number to make 10 and find a sum.
7+4= 7+4= 7+4= 7+4=
4. Break apart a number to make 10 and find a sum.
5+8= 5+8= 5+8= 5+8=
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
Notes
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
MPs * Embedded MP
Conceptual Lesson Grade 1 · Unit 4 · Lesson 6
1
2
3
4
5
* *
6
7
8
*
*
MC: 1.OA.1 Student Journal Pages
220-222
Today, I will solve word problems by writing equations with unknowns in the first or second position.
Vocabulary Missing Addend Word Problem
First Addend Missing: In the basket, there are some apples and 5 oranges. In all, there are 8 pieces of fruit. How many apples are in the basket?
Y+5=8
Teacher Resources Considerations: Missing addends can be represented by any letter or symbol.
Steps: 1. 2. 3. 4.
Listen carefully to the word problem. Write the equation with the unknown. Solve for the unknown. Record the unknown.
Application of MPs: Second Addend Missing: Andy has 6 books. Savannah has some books. Altogether, they have 12 books. How many books does Savannah have?
MP1:
What steps were used today?
MP2: What is a real life scenario you could apply? MP7: Is there another way I can help see this problem?
6 + = 12
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
Answer Key: I/M
SGP
1. x + 3 = 7; x=4
1. 6 +
2.
8+
= 9;
=1
FCU = 8;
=2
2. 2 + Z = 7; Z = 5
1. W + 5 = 10; W = 5
2. 2 +
= 11;
=9
HW 1. 6 + 8 6+4+4 10 + 4 14
2. 9 + 5 9+1+4 10 + 4 14
3. Answers may vary due to the commutative property. Sample answer: 7+4 7+3+1 10 + 1 11
4. Answers may vary due to the commutative property. Sample answer: 5+8 5+5+3 10 + 3 13
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Use objects and drawings to solve the following word problem. Solve for the unknown.
1. Katie had some puppies. Jen gave her 3 more and now she has 7. How many puppies did Katie start with?
State the objective: Today, I will solve word problems with missing addends in the first or second position.
Explain that the first step is to carefully listen to the word problem to get the information needed to write down the equation.
Model how to record the equation with the missing addend represented with a letter or symbol: X + 3 = 7 X=
Explain that the next step is to solve for X or the missing addend.
Model how to start at 3, the known addend, and count on using counters until 7 is reached (3…4, 5, 6, 7). Counters represent the puppies that Katie started with, or the missing addend.
Record X = 4.
2. Amy had 8 pencils in her desk. She found some pencils on the floor. Now she has 9 pencils. How many pencils did she find on the floor?
Restate the objective: Today, I will solve word problems with missing addends in the first or second position.
Explain that the first step is to carefully listen to the word problem to get the information needed to find the sum.
Model how to record the equation with the missing addend represented with a letter or symbol: 8 + = 9 =
Explain that the next step is to solve for
Model how to start at 8, the known addend, and count on using drawings until 9 is reached (8… 9).
Record
=1
8+ Drawing
Copyright © Swun Math
or the missing addend.
=9 =1
Grade 1 Unit 4 Lesson 6 C TE
/ Directions: Use objects and drawings to solve the following word problem. Solve for the unknown.
1. The teacher had 6 paperclips. She got some more from the office and now she has 8 paperclips. How many paperclips did she get from the office?
Restate the objective.
Direct the students to listen the word problem, record the equation with the unknown, and solve with counters for the missing addend.
6+
=8 =2
2. Anh had some blue gumballs. She had 2 red gumballs. If she had 7 gumballs in all, how many blue gumballs did she have?
Restate the objective.
Direct the students to listen to the word problem, record the equation with the missing addend, and solve with drawings for the missing addend.
Z+2=7 Drawing
Z=
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
Directions: Use objects and drawings to solve the following word problem. Solve for the unknown.
1. A group of kids have some tennis balls. They also have 5 baseballs. In all they have 10 balls. How many tennis balls do they have?
W + 5 = 10 Drawing
W= 2. There were 2 star stickers. There were some heart stickers. Altogether, there were 11 stickers. How many heart stickers were there?
2+
= 11 =
*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 6 C TE
Name: ____________________________ Directions: Review using base ten frames to find sums.
Date: ______________________________
1. Use base ten frames to break apart a number to make 10 and find a sum. Complete the table.
6+8= 6+8= 6+8= 6+8=
6+4+4 10 + 4
2. Use base ten frames to break apart a number to make 10 and find a sum. Complete the table.
9+5= 9+5= 9+5= 9+5= Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
3. Break apart a number to make 10 and find a sum.
7+4= 7+4= 7+4= 7+4=
4. Break apart a number to make 10 and find a sum.
5+8= 5+8= 5+8= 5+8=
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
Notes
Copyright © Swun Math
Grade 1 Unit 4 Lesson 6 C TE
