# Activities

• • • ##### Subject Area

• Math: Middle Grades Math: Number Sense
• Math: Middle Grades Math: Statistics and Probability
• Math: PreAlgebra: Number Sense and Operations
• Math: PreAlgebra: Probability, Statistics and Data Analysis

• ##### Author 6-8

60 Minutes

• ##### Device
• TI-15 Explorer™
• ##### Other Materials
This is Activity 3 from the EXPLORATIONS Book:
Developing Problem-Solving Skills with the TI-15

The following materials are required for this activity:
• Chart paper and markers

## Pizza Extravaganza

#### Activity Overview

Students will conduct a survey of the class to determine favorite pizza toppings. They use this sample information to predict the preferred toppings for the school and use the TI-15 to help them with the calculations to plan a school-wide pizza party.

#### Before the Activity

• See the attached PDF file for detailed instructions for this activity
• Print pages 18 - 24 from the attached PDF file for your class
• #### During the Activity

Distribute the pages to the class.

• Find the number of students who choose each flavor of ice-cream
• Record the total number of students in the class to determine the percent of students preferring each flavor

• Conduct a survey of the class to determine the favorite pizza toppings
• Record the number of students who vote for a particular topping
• Use the calculator to find the percentage of the class that prefers each type of topping
• Calculate the percentage and the number of students in the school who are likely to prefer each type of topping
• Calculate the number of pizzas of each type that is needed
• Create a chart showing the survey results and write an explanation of the calculations
• #### After the Activity

• Review student results
• As a class, view posters and discuss the similarities and differences between the different solutions
• Re-teach concepts as necessary