Education Technology

How Far Did You Walk?

Activity Overview

In this activity, students will find the distance traveled when the velocity is constant by examining the area under the Velocity-Time graph and applying the formula d = r * t. They will also find the distance traveled for motion when the velocity is not constant by approximating the area under the Velocity-Time graph.

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 10-13 from the attached PDF file for your class
  • During the Activity

    Distribute the pages to your class.

    Follow the Activity procedures:

  • Run the Ranger program on the calculator
  • Stand close to a wall (facing away from it) and point the CBR towards the wall
  • Start walking away from the wall at a constant rate and begin data collection
  • Study the velocity versus time graph
  • Draw a line that best approximates the velocity of motion and record the value
  • Determine the slope of the line and the acceleration
  • Compare the area of the rectangles formed by the line that approximates velocity and a vertical line at each time
  • Find the distance from the wall and the distance traveled
  • After the Activity

    Students will complete the Data Collection table 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