Writing Addition Number Sentences

1. Learning Objective Name_____________________ Today, we will write addition number sentences. CFU What are we going to do today? Activate (or provide) Prior Knowledge • Circle the plus sign. • Circle the equal sign. • Solve the addition number sentences. • A 5 + 3 = B 3 + 2 = CFU Teacher completes A; students complete B. Students, you already know how to solve number sentences. Sometimes we have to read word problems to find the addition number sentences that we need to solve. Today, we will write addition number sentences.

2. Concept Development Addition Key Words altogether total Addition means to put together. Addition Number Sentence: plus sign equal sign 5 + 1 = 6 number number number • To write an addition number sentence, look for addition key words. James had five pieces of candy. Then he got one more. James now has six pieces of candy altogether. CFU On your whiteboard, write a plus sign. On your whiteboard, write an equal sign. Which of the number sentences can be written from the following word problem? How do you know? A B Jose has five green balls and four orange balls. Jose has nine balls altogether. 5 + 4 = 9 5 − 4 = 1 In your own words, what does addition mean? Addition means _______________.

3. Skill Development/Guided Practice Addition Key Words altogether total 1. Juan has two blue marbles and three red marbles. Juan has fivemarbles altogether. 2. Allison has three green blocks and one red block. Allison has fourblocks altogether. Addition means to put together. • To write an addition number sentence, look for addition key words. Write addition number sentences. Step #1: Read the word problem carefully. a. Identify1 addition key words. (underline) b. Identify number words. (circle) Step #2: Write an addition number sentence. Step #3: Read the addition number sentence aloud. 1 find CFU (#1a) How did I/you identify addition key words? (#1b) How did I/you identify number words? (#2) How did I/you write an addition number sentence?

4. Skill Development/Guided Practice (Continued) Addition Key Words altogether total Addition means to put together. • To write an addition number sentence, look for addition key words. Write addition number sentences. Step #1: Read the word problem carefully. a. Identify addition key words. (underline) b. Identify number words. (circle) Step #2: Write an addition number sentence. Step #3: Read the addition number sentence aloud. CFU (#1a) How did I/you identify addition key words? (#1b) How did I/you identify number words? (#2) How did I/you write an addition number sentence?

5. Importance Addition means to put together. • To write an addition number sentence, look for addition key words. • Writing addition number sentences will help you solve real world problems. James has seven pieces of candy. He gets three more from his father. James has ten pieces of candy altogether. 7 + 3 = 10 CFU Does anyone else have another reason why it is important to write an addition number sentence? (pair-share) Why is it important to write an addition number sentence? You may give me one of my reasons or one of your own. Which reason is more important to you? Why?

6. Concept Closure 4 + 2 = 6 What do the symbols mean? + __________________________ = __________________________ Addition Key Words altogether total Addition means to put together. • To write an addition number sentence, look for addition key words. Skill Closure Write addition number sentences below. Step #1: Read the word problem carefully. a. Identify addition key words. (underline) b. Identify number words. (circle) Step #2: Write an addition number sentence. Step #3: Read the addition number sentence aloud. 1. Jamie has two blue shirts and six green shirts. Jamie has eight shirts altogether. Summary Closure What did you learn today about writing addition number sentences? (pair-share)

7. Independent Practice Name _____________________ Addition Key Words altogether total Addition means to put together. • To write an addition number sentence, look for addition key words. Write addition number sentences. Step #1: Read the word problem carefully. a. Identify addition key words. (underline) b. Identify number words. (circle) Step #2: Write an addition number sentence. Step #3: Read the addition number sentence aloud.

8. Independent practice (continued) Addition Key Words altogether total Addition means to put together. • To write an addition number sentence, look for addition key words. Write addition number sentences. Step #1: Read the word problem carefully. a. Identify addition key words. (underline) b. Identify number words. (circle) Step #2: Write an addition number sentence. Step #3: Read the addition number sentence aloud.

9. Periodic Review 1 Name _______________________ Addition Key Words altogether total Addition means to put together. • To write an addition number sentence, look for addition key words. Write addition number sentences. Step #1: Read the word problem carefully. a. Identify addition key words. (underline) b. Identify number words. (circle) Step #2: Write an addition number sentence. Step #3: Read the addition number sentence aloud.

10. Periodic Review 2 Name ________________________ Addition Key Words altogether total Addition means to put together. • To write an addition number sentence, look for addition key words. Write addition number sentences. Step #1: Read the word problem carefully. a. Identify addition key words. (underline) b. Identify number words. (circle) Step #2: Write an addition number sentence. Step #3: Read the addition number sentence aloud.

11. Periodic Review 3 Name ________________________ Addition Key Words altogether total Addition means to put together. • To write an addition number sentence, look for addition key words. Write addition number sentences. Step #1: Read the word problem carefully. a. Identify addition key words. (underline) b. Identify number words. (circle) Step #2: Write an addition number sentence. Step #3: Read the addition number sentence aloud.

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