G2 U10 L2 SJ

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Even Number Equations

Applied MP

MPs * Embedded MP

Procedural Lesson Grade 2 · Unit 10· Lesson 2

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MC: 2.OA.3

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Problem of the Day



Objective: Today, I will write an

to express an

as the sum of two equal addends.

Vocabulary

Notes

Equation: a number sentence with an equal sign. 10 = 5 + 5 or 5 + 5 = 10

0---0 0---0 0---0 0---0 0---0

5 + 5 = 10

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Grade 2 Unit 10 Lesson 2 P SJ

* 

Structured Guided Practice (A / B Partners Practice)

Directions: Solve the problems below by placing the objects into two groups.

1. Represent 14 as the sum of 2 equal addends by: 

Drawing a picture



Writing an equation

2. Write an equation expressing the number 4 as a sum of 2 equal addends.

0----0 0----0

 MP7: Where did you see a pattern?  MP8: Did you see repetition in your work?

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Grade 2 Unit 10 Lesson 2 P SJ

Final Check for Understanding (A / B Partners Practice)

Directions: Solve the problems below by placing the objects into two groups.

1. Write an equation expressing the number 8 as a sum of 2 equal addends.

0----0 0----0 0----0 0----0

2. Represent 10 as the sum of 2 equal addends by: 

Drawing a picture



Writing an equation

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Grade 2 Unit 10 Lesson 2 P SJ

Student Practice

Name: ____________________________

Unit 10 Lesson 2: Even Number Equations

Date: ______________________________

Directions: Solve.

1. Represent 12 as the sum of 2 equal addends by: 

Drawing a picture.



Writing an equation.

3. Write an equation expressing the number 8 as a sum of 2 equal addends. 

0----0 0----0 0----0 0----0

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2. Write an equation expressing the number 2 as a sum of 2 equal addends.

0----0

4. Represent 20 as the sum of 2 equal addends by:   

Drawing a picture.



Writing an equation.

Grade 2 Unit 10 Lesson 2 P SJ

Student Practice

Name: ____________________________

Unit 10 Lesson 2: Even Number Equations

Date: ______________________________

Directions: Solve.

5. Represent 6 as the sum of 2 equal addends by: 

Drawing a picture.



Writing an equation.

6. Represent 4 as the sum of 2 equal addends by: 

Drawing a picture.



Writing an equation.



Explain why 2 even addends are equal to an even sum.

0----0 0----0

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Grade 2 Unit 10 Lesson 2 P SJ

Challenge Problems

1. Draw a picture for 5 + 5 + 5 + 5. What do you notice about the sum?

2. Draw a picture for 8 + 8 + 8 + 8. What do you notice about the sum?

Extension

*MP4: How can you relate this to something in real life?

Draw a picture and write an equation to represent the sum of one odd number and one even number. What do you notice about the sum? Why do you think the sum is what it is?

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Grade 2 Unit 10 Lesson 2 P SJ

Closure

Reaching Consensus

*MP3: Do you agree/disagree with what

said?

Student Presentations

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

Closure Recap today’s lesson with one or more of the following MP questions: MP2: What did your model represent?  MP3: How did your model support your answer? MP7: Where did you see a pattern? MP8: Did you see any repetition in your work?

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Grade 2 Unit 10 Lesson 2 P SJ

Notes

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Grade 2 Unit 10 Lesson 2 P SJ