Education Technology

# Activities

• ##### Subject Area

• Math: Middle Grades Math: Number Sense
• Math: Middle Grades Math: Basic Facts
• Math: PreAlgebra: Number Sense and Operations

6-8

30 Minutes

• ##### Device
• TI-73 Explorer™

## Fraction Conversions

#### Activity Overview

Students use the calculator and their understanding of fractions to find how much of each ingredient is needed to make a large number of cookies using the given recipe.

#### Before the Activity

• Set up the calculator as explained in the attached appendix file
• See the attached PDF file for detailed instructions for this activity
• Print the pages from the attached PDF file for the class
• #### During the Activity

Distribute the pages to the class.

• Subtract the number of cookies that can be made with the given recipe and determine how many more cookies need to be made
• Find the fraction of dough needed to make the additional cookies
• Multiply the amount of each ingredient in the recipe by the fraction
• Note the new amount of ingredients required to make the larger number of cookies
• #### After the Activity

Review student results:

• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary