1. Fundraising thermometers
Problem 1.3
Fundraising thermometers

2. Fundraising Thermometers
A. The principal labeled some of the marks on the four thermometers with dollar amounts. Decide what labels belong on the remaining marks.

3. Fundraising Thermometers
A. The principal labeled some of the marks on the four thermometers with dollar amounts. Decide what labels belong on the remaining marks.

4. Fundraising Thermometers
Ben says “For every $60 the sixth graders plan to raise, the seventh graders plan to raise $90.”
Ben also says “For every $30 the sixth graders plan to raise, the seventh graders plan to raise $45.”
B2. Use the thermometers to write two more FOR EVERY claims that relate the fundraising goals.

5. Fundraising Thermometers
C. You can write comparisons as a ratio. A ratio is a type of comparison, below are examples of a ratio.
“For every $60 the sixth graders plan to raise, the seventh graders plan to raise $90.”
“The ratio of sixth grade goal to seventh – grade goal is 60 to 90.”
Ratios
“For every $30 the sixth graders plan to raise, the seventh graders plan to raise $45.”
“The ratio of sixth grade goal to seventh – grade goal is 30 to 45.”

6. Fundraising Thermometers
C1. What do the numbers 60, 90, 30, and 45 mean in each ratio statement?
C2. Rewrite your comparisons from question B part 2 using the word ratio. Use the examples below to help you.
“The ratio of sixth grade goal to seventh – grade goal is 60 to 90.”
“The ratio of sixth grade goal to seventh – grade goal is 30 to 45.”

7. Fundraising Thermometers
D. The ratios from Ben’s statements show the same relationship using different numbers.
“The ratio of sixth grade goal to seventh – grade goal is 60 to 90.”
“The ratio of sixth grade goal to seventh – grade goal is 30 to 45.”

8. Fundraising Thermometers
D. The ratios from Ben’s statements show the same relationship using different numbers.
“The ratio of sixth grade goal to seventh – grade goal is 60 to 90.”
60 to 90
60 90
Ratio can be written as a fraction
“The ratio of sixth grade goal to seventh – grade goal is 30 to 45.”
30 to 45
30 45
Ratio can be written as a fraction

9. Fundraising Thermometers
What do you notice??
60 90 = 30 45

10. Fundraising Thermometers
D. List some other pairs of equivalent ratios you have found in this problem.

11. Fundraising Thermometers
D2. What patterns do you notice?

12. Fundraising Thermometers
D2. What patterns do you notice?