1. Proportion Models

2. Fold your graph paper into thirds

3. Label it Shorts and pants Chocolate chip and sugar cookies Cats and pets

4. In Mrs. Durfee’s class, the ratio of students wearing shorts to students wearing pants is 1 to 3 Draw a model

5. In Mr. Prince’s class, the ratio of students wearing shorts to students wearing pants is 4 to 12 Draw a model

6. Compare the two models Each model has 4 boxes Each box has the same amount of items

7. The ratios are proportional (equivalent) =

8. In one box of cookies, the ratio of chocolate chips cookies to sugar cookies is 3 to 8 Draw a model

9. A bigger box of cookies has the ratio of 12 to 32 chocolate chips cookies to sugar cookies Draw a model

10. Each model has 11 boxes Each box has the same amount of items

11. =

12. The ratio of cats to total pets at PetCo is 3 to 9. PetSmart’s ratio of cats to total pets is 6 to 18 Draw a model

13. The ratio of cats to total pets at PetCo is 3 to 9

14. PetSmart’s ratio of cats to total pets is 6 to 18

15. They are proportional 3 to 9 6 to 18 Same number of boxes Equal amount of items in each box