Activity Detail

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Activity Overview

In this activity, students will investigate modeling the motion of two people to find where they will meet and at what rate each was walking.

Before the Activity

  • Connect the one calculator to one CBR 2™ unit
  • Download the TI Connect™ software to analyze data on the computer
  • See the attached PDF file for detailed instructions for this activity
  • Print pages 27 - 32 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
  • Collect data as two people walk toward each other and away from a wall
  • Observe the distance versus time graphs
  • Determine the slope and y-intercept for each line
  • Use the sign of the slope to identify the direction of motion
  • Find the velocity for each walker
  • Enter the two equations in the slope-intercept form in the calculator and graph them
  • Determine the point of intersection of the two lines


    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


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    Subject Area:
    Math : Algebra I : Linear Equations and Functions

    Author:
    Texas Instruments

    Level:
    9-12

    Activity Time:
    60 Minutes

    Device:
    TI-83 Plus Family, TI-84 Plus Family

    Apps:
     

    Software:
    TI Connect™

    Accessories:
    CBL™/CBL 2™, CBR™/CBR 2™, TI Connectivity Cable, Unit-to-Unit link cables

    Other:
    This is Activity 6 from the EXPLORATIONS Book:
    Modeling Motion: High School Math Activities With The CBR

    The following materials are required for this activity:

  • Yard stick
  • Masking tape


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