Joy and John have a total of $10.00 to buy popcorn for 10 people. They are trying to decide which size popcorn gives the best value.
1. Complete the table to summarize what you know about each student's position. (2 points: 1 point for each row of the chart)
Joy
Thinks they should buy one Extra Value Tub and that it's clearly the biggest
John
Thinks the Pop-Cones are the best value because they're so cheap and wants to buy 10 of those
Analyze the Conjecture:
2. What size popcorn do you expect will have the best value for the money? Why? (1 point)
Analyze the Data:
3. Fill in the chart with what you know about the shapes of the popcorn containers. (3 points: 1 point for each row)
Size
Container shape
Dimensions: base
Dimensions: height
Price
4. What is the volume of the Extra Large Tub? (1 point)
5. What is the price per cubic inch for the Extra Large Tub? (1 point)
6. What is the volume of the Regular Size popcorn? (2 points)
7. What is the price per cubic inch for the Regular Size popcorn? (2 points)
8. What is the volume of the Pop-Cone? (2 points)
9. What is the price per cubic inch for the Pop-Cone? (2 points)
Making a Decision:
10. Who was correct? Which size is the best deal? How should Joy and John spend the $10.00? (2 points)
Further Exploration:
11. How many Pop-Cones would you have to buy to equal the volume of an Extra Large Tub? (1 point)
12. If each pair of two students shares 1 Regular Size popcorn, how many cups of popcorn will each student get? (1 cup = 14.4 in3) (1 point)
