1. + Lesson 4 and 5

2. + Draw the number of cubes I show with quick tens and ones. Show me your boards. Tell me the number. 24! Draw the number I show with quick tens and ones. 42 Tell me the number. 42

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4. + Game rules: 1. I’ll say a number, and you say how many more to make ten. 2. Then you will write the addition sentence on your board. Then show them to me. Get ready! You earn a point if you wrote 9 + 1 = 10, 1 + 9= 10 10 = 9 +1, 10 = 1 + 9 2 + 8 = 10, 8 + 2 =10 10 = 2 + 8, 10 = 8 +2 5 + 5 =10 10 = 5 + 5

5. + Game rules: 1. I’ll say a number, and you say how many more to make ten. 2. Then you will write the addition sentence on your board. 3. This time start your number sentence with the number shown. 4. Then show them to me. Get ready! You earn a point if you wrote 19 + 1 = 20 39 + 1 = 40 Now try with the some more with the Rekenrek

6. + Let’s take out 1 from each number. I say 5. You write the number bond and say the two parts, 1 and 4. 5 41 3 21 1010 91 7 61

7. + This is 9 And now I add the 4 So, 9 + 4 = 13

8. + Did we make a ten? Yes! Our 9 + 4 is now a ten-plus fact. What fact can you see in the drawing? 10 + 3 10 + 3 equals? 13 So, 9 + 4 equals? 13 10 3

9. + What did we take out of 4 so that we could make 10? 9 + 4 = 13 10 3 9 + 4 = 13 1 3 How did we get our ten? 10

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11. + Talk to your neighbor about how you would solve this problem 39 + 4 Draw 39 using quick tens and circles. Show me your board! Now draw 4 Xs. Let’s show 39 + 4 using a number bond. We started with 39. How did we break apart 4 so we can make 40? Write the number sentence with the solution. 39 + 4 equals 40 plus…? The answer is…? 39 + 4 = 1 3 39 + 1 =40 40 + 3 = 43

12. + Concept Development continued.. Let’s practice the break apart method with these problems. Remember to show your work. 49 + 5 79 + 5 48 + 5 78 + 5 7 + 29 7 + 48 77 + 6

13. + Application Problem Mia counted all the fish in a tank. She counted 38 goldfish and 4 black fish. How many fish were in the tank?

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15. + Students Debrief  Do you notice a pattern that will help you memorize your 9-plus facts? What other patterns do you notice?  Explain the strategy we reviewed today. Can you think of another problem that the make ten strategy will help us solve?  How does knowing 9+3 help you solve 19 + 3?  What other patterns do you notice in todays lesson? Explain how the patterns help you solve the problems.  Compare 43 + 5 and 48 + 5. What is different about them?  Can you figure out the math goal of today’s lesson?  What name would you give this lesson?