Addition

​Use a Number Line to Add

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​Chapter 3 Lesson 3

​Essential Question

​How do I use strategies to add numbers?

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Multiple Choice

Quick Check!

What is 8 + 3

• 10

• 9

• 11

• 13

​Quick Check!

When counting on to add, what number do we start with?

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Example:

7 + 3 = _____ ​

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​Problem of the Day

​5 children were playing on the playground.

Then 3 children left.

How many children need to come to the playground to have 4 more children than before?

How do you know?

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_____ children. ​

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Multiple Choice

Quick Check!

Test Practice: Leah has 7 pennies. She earned 2 more pennies. How many pennies does Leah have now?

• 9

• 10

• 7

• 11

​How can you use a number line to add?

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​Investigate the Math

Choose a number from 1 to 5 on the number lone. Draw a point on the number line. Use the number line to add 4 to the number. Draw a point on the sum. Complete the addition sentence.

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​_____ + __4__ = _____

​Investigate the Math

Solve the addition problem in the two ways shown.

7 + 3

Show 7 objects. Show 3 objects. Find the total. ​

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Start at 7. Count on by 3. ​

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​Number Line Instructions

Have students pair up and give each group a set of dice. Roll the first one, find it on the number line. Roll the second one, add it to the first! ​

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​Human Number Line Game Instructions

Make a number line on the ground with tap and numbers from 1-10. Give students addition problems and have them move their body's to the correct answer. ​

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