Education Technology

# Activities

• ##### Subject Area

• Math: Algebra I: Quadratic Functions

9-12

60 Minutes

• ##### Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition

TI Connect™

• ##### Accessories

CBR™/CBR 2™
TI Connectivity Cable

• ##### Other Materials
This is Activity 10 from the EXPLORATIONS Book:
Modeling Motion: High School Math Activities With The CBR

The following materials are required for this activity:
• A racquet ball

## Velocity and the Bouncing Ball

#### Activity Overview

In this activity, students will explore the position of the ball versus time for a single bounce. They will also examine the relationship between the height of the ball and its velocity.

#### Before the Activity

• Connect the calculator to the CBR 2™
• Install the TI Connect™ software to analyze data on the computer
• See the attached PDF file for detailed instructions for this activity
• Print pages 51 - 55 from the attached PDF file for your class
• #### During the Activity

Distribute the pages to your class.

• Run the Ranger program on the calculator
• Release the ball beneath the CBR™ and begin data collection
• Ensure that your graph has a minimum of five bounces
• Select one bounce to analyze
• Use data from a single bounce to sketch graphs of distance versus time and velocity versus time
• Record the right and left bounds and find the best quadratic and linear function that fits the data
• #### After the Activity

Students will complete the Data Sheet and answer questions listed in it.

Review student results:

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