Education Technology

Activities

• Subject Area

• Math: Elementary Math: Number Operations

K-5

45 Minutes

• Device
• TI-15 Explorer™

Comparing Costs

Activity Overview

Students will solve a problem using division with an integer quotient and remainder, division with the quotient in fraction form, and division with the quotient in decimal form and compare the results.

Before the Activity

Introduce the following problem:

The maintenance department has determined that it will cost \$.40 per square yard to maintain the district's soccer field each year. The soccer field is 80 yards wide and 110 yards long. The six schools that play on the field have decided to split the cost evenly. How much should each school contribute to the soccer field maintenance fund this year?

During the Activity

Have students use the calculator to solve this problem in three ways:

• Finding an integer quotient and remainder
• Finding the quotient in fraction form
• Finding the quotient in decimal form