The direction you move, the speed you travel, and the rate at which you change your direction and speed all have an effect on the shape of a Distance-Time plot. Would it be possible to use these factors to plot specific shapes on the calculator while moving in front of the CBR? Is it possible to plot any shape you desire on the screen? What determines if a shape can be plotted by your motion in front of the CBR?

Objectives

In this activity you will:

• Discover what type of shapes can be plotted as a result of your motion in front of the CBR.
• Observe which shapes can and cannot be made with a Distance-Time plot.
• Determine a rule for which shapes can be made by walking in front of the CBR.

Materials Needed

• CBR unit
• TI-83 and calculator-to-CBR cable

Copyright 1998 Texas Instruments Inc.

Activity Guide

Teacher's Guide

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