Education Technology

# Activities

• ##### Subject Area

• Math: PreAlgebra: Linear Functions

6-8

60 Minutes

• ##### Device
• TI-73 Explorer™
• ##### Other Materials
• Plastic cup
• Graduated Cylinder (measuring in mL)
• Safety pin
• Bottle of water
• Stopwatch
• Paper towels

## Help, a Pipe is Leaking!!!

#### Activity Overview

In this activity, students will simulate a pipe leaking and collect data.
Students will then use the TI-73 calculator to determine how many gallons would leak at that rate for a 30-day month.

#### Before the Activity

This activity works best with groups of four.
Place one plastic cup, one graduated cylinder (mL), one safety pin, a bottle of water, a stopwatch, and a couple of paper towels at each group's station.
Students will also need the TI-73 calculator.
It is best if students get their calculator after collecting the data.

#### During the Activity

Be sure students reset the memory on the TI-73 calculators.
Access MEM by pressing 2nd 0. Then press 7 (reset)and 1 (All RAM). Now press 2 to reset.

#### After the Activity

Review student results:

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