1. + Module 4 Lesson18

2. + Objectives Use manipulatives to represent or show additions with two compositions

3. + Fluency: Make the Next Ten to Add When I say 9+4 you say 10+3=13 Ready? 19+4 29+4 79+4 9+6 19+6 29+6 9 + 4=_____ 1 3  8+3  18+3  48+3  8+5  18+5 20+3 = 23 30+3= 33 80+3= 83 10+5= 15 20+5= 25 30+5= 35 10+1=11 20+1=21 50+1=51 10+3=13 20+3=23

4. + Sprints Put your name and number at the top of the page Sprint A On your mark, get set, THINK Lets check your work Write the number you got correct up top Sprint B On your mark, get set, THINK Lets check your work Write the number you got correct up top What was your improvement?

5. + Concept Development You will need a place value chart and number disks. Decided who will be Partner A and Partner B 40+70 Partner A, show 40 on you place value chart. Partner B, show 70. Be sure to arrange the disks in 5-groups Partner A put your disks together with your partner’s disks. 4 tens + 7 tens? What does that equal? 11 tens. 11 tens equals 110 So 40+70 equals 110 100’s10’s1’s

6. + Concept Development You will need a place value chart and number disks. Decided who will be Partner A and Partner B 40+70 Partner A, show 40 on you place value chart. Partner B, show 70. Be sure to arrange the disks in 5-groups Partner A put your disks together with your partner’s disks. 4 tens + 7 tens? What does that equal? 11 tens. 11 tens equals 110 So 40+70 equals 110 100’s10’s1’s

7. + Concept Development Continued Now we are going to include ones in our addends. Partner A, change your number from 40 to 49. Partner B, change your number from 70 to 73 Now our new addition problem is 49+73 Partner B move your ones together. How many ones do you have? What do you do next? Partner B, show that change on your model. What’s the next step? Partner A, show that change on your model What is 49+73 in expanded form? Talk with your partner. How is making a hundred the same as making a ten? 100’s10’s1’s

8. + Concept Development Continued Now we are going to include ones in our addends. Partner A, change your number from 40 to 49. Partner B, change your number from 70 to 73 Now our new addition problem is 49+73 Partner B move your ones together. How many ones do you have? What do you do next? Partner B, show that change on your model. What’s the next step? Partner A, show that change on your model What is 49+73 in expanded form? Talk with your partner. How is making a hundred the same as making a ten? 100’s10’s1’s

9. + Concept Development Continued Now we are going to include ones in our addends. Partner A, change your number from 40 to 49. Partner B, change your number from 70 to 73 Now our new addition problem is 49+73 Partner B move your ones together. How many ones do you have? What do you do next? Partner B, show that change on your model. What’s the next step? Partner A, show that change on your model What is 49+73 in expanded form? Talk with your partner. How is making a hundred the same as making a ten? 100’s10’s1’s

10. + Concept Development Continued Let’s use what you’ve discovered to solve another problem. 136 + 64. Work with your partner to model these addends. 100’s10’s1’s v v v

11. + Concept Development Continued Let’s use what you’ve discovered to solve another problem. 136 + 64. Work with your partner to model these addends. 100’s10’s1’s v v v

12. + Concept Development Continued Let’s use what you’ve discovered to solve another problem. 136 + 64. Work with your partner to model these addends. 100’s10’s1’s v v v

13. + Concept Development Continued Let’s use what you’ve discovered to solve another problem. 136 + 64. Work with your partner to model these addends. 100’s10’s1’s v v v

14. + Concept Development Continued Let’s use what you’ve discovered to solve another problem. 136 + 64. Work with your partner to model these addends. 100’s10’s1’s v v

15. + Application Problem Halley and Gio solve 56+48. Gio says the answer is 131. Hailey says the answer is 141. Explain whose answer is correct using numbers, pictures, or words.

16. + Problem Set Do you best to complete the problems set.