4 more blue than red 3 times as many blue than red

1. 4 more blue than red 3 times as many blue than red 4 less red than blue

3. unit rate --> bottom # = 1

4. Ratio*- a comparison of two 
quantities using division # of pennies = # of nickles = Count the coins to compare the number of 
pennies to the number of nickles. *(The word ratio comes from the Latin word ratus which means 
"calculation." In the middle ages the word ratio was used to mean 
"computation.")

5. Compare the number of pennies to nickles There are three different ways to write a ratio when 
comparing a part to a part... Pull Pull as a fraction 5/3 Pull Pull Use a colon between the two 
numbers 5:3 All three are read 5 to 3 using the word "to" between the two numbers 5 to 3 Pull Pull Move coins for more info!

6. Suppose you wanted to compare 
the number of boys to girls in a 
class that had 15 boys and 13 
girls. The first quantity in this case 
the boys is always written first Move the 
Mathman to reveal 
the answer 15/13 15 to 13 15:13

7. Notice with the same numbers 15 
boys and 13 girls, a comparision of 
girls to boys would yield an entirely 
different answer Move the 
Mathman to reveal 
the answer 13/15 13 to 15 13:15

8. Suppose you wanted to compare 
the number of boys to the total number of students in a class that 
had 15 boys and 13 girls. The first 
quantity in this case the boys is 
always written first. Hint! add numbers to find total Move Mathman to 
reveal an 
additional way to 
write ratios 15/28 15 to 28 15:28 15 out of 28

10. What is the ratio of green fish to orange fish? 2 2:5 2 to 5 5 2 2 to 5 2:5 5 7 5 5 to 2 2:7 5 2 What is the ratio of orange fish to green fish?

11. There are 4 fish in the tank. The ratio of green fish to orange fish is 1:3

12. There are 8 fish in the tank. The ratio of green fish to orange fish is 1:3

13. What is the ratio of black fish to red fish? 2:3 4:6 2 4 3 6

14. What do you notice? x 2 4 2 = 6 3 x 2 equivalent ratios equivalent ratios

15. Match the equivalent ratios 9:12 6:60 6 to 8 1:10 5 10:12 6 Not all the cards have a match 5 5 10 1 to 5 3:15 3:15 6 2 4 5 10 2 4 3 9:12 6 to 8 4 3 10 10:12 1 to 5 4 6:60 1:10 5 10 5

16. Find other equivalent ratios 5 10:12 6 1 to 5 3:15 5 10 : 2 4 3 9:12 6 to 8 4 6:60 1:10

17. Solve these ratio problems The ratio of orange juice to water for this recipe is 1:5 Orange Water qt 1 qt 5 Batch 1 Batch 2 2 gal gal 10 Batch 3 pt 30 pt 6

18. Solve these ratio problems The ratio of orange juice to water for this recipe is 1:6 1 qt = 2 pt 4 qt = 1 gal Orange Water pt 12 Batch 1 1 qt Batch 2 2 gal qt 48 qt 24 pt Batch 3 2

20. After discussing the first box of cereal on the left, remove the shade on the right, discuss, then click between the cereal boxes. Hide these instructions Instructions 18 oz box $3.96 24 oz box $4.80 click between the boxes

21. Unit price $ $ 18 oz box $ $ $3.96 24 oz box $4.80 After a discussion of unit prices, click the top left blue box, then the box beneath it. Then click the two blue boxes on the right. Then click the last blue box. Hide these instructions. Instructions Conclusion: The larger size box is cheaper per ounce. Each ounce costs less. Therefore, it is the better buy!

22. 1 What is the unit price of the smaller bottle? If your answer is 4.5 cents per ounce, enter: 0.045 Answer Smaller bottle,unit price $ 64 ounces $4.00 96 ounces $6.24

23. http://studyjams.scholastic.com/studyjams/jams/math/algebra/ratio.htmhttp://studyjams.scholastic.com/studyjams/jams/math/algebra/ratio.htm

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