Education Technology

# Activities

• ##### Subject Area

• Math: Middle Grades Math: Measurement
• Math: Middle Grades Math: Algebraic Thinking
• Math: Middle Grades Math: Number Sense
• Math: PreAlgebra: Measurement
• Math: PreAlgebra: Number Sense and Operations

6-8

60 Minutes

• ##### Device
• TI-15 Explorer™
• ##### Other Materials
This is Activity 5 from the EXPLORATIONS Book:
Developing Problem-Solving Skills with the TI-15

The following materials are required for this activity:
• Recipe: Parmesan Macaroni Casserole
• Chart paper
• Markers
• A 16-ounce jar of peanuts
• A 15-ounce box of raisins

## Banquet Meal

#### Activity Overview

Students use proportional reasoning skills to increase a family-size recipe to a banquet-size recipe.

#### Before the Activity

• See the attached PDF file for detailed instructions for this activity
• Print pages 31 - 37 from the attached PDF file for your class
• Realize that when multiplying a recipe to make a bigger amount, the proportion of each ingredient must remain the same
• #### During the Activity

Distribute the pages to the class.

• Determine how many people a family-size recipe for a casserole will feed (6)
• Determine how many family-size recipes it takes to feed 20 people
• Create a table of ingredients and the amounts used
• Calculate the amount of each ingredient required to feed 20 people and tabulate the results

• Create charts showing the recipe for a casserole for 6 people and for 200 people
• List the ingredients and calculate the amount of each ingredient needed
• Find the number of pans needed to cook casserole for 200 people
• Write an explanation for the calculations
• #### After the Activity

Students present the completed charts to the class.

• Review student results
• As a class, evaluate the charts for similarities and differences
• Re-teach concepts as necessary