Activity Description Functions like a real stopwatch, recording times that you choose. This stopwatch is accurate to the nearest tenth of a second. Parameters: Count up from 0 or count down from a set time.

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Stopwatch

Place in mathematics curriculum:

This activity can be used to:

• Facilitate measurement of time in a wide variety of experiments.

This activity allows the user to run a stopwatch on the computer screen. The stopwatch can either count from 0 up, or count down from a time specified by the user. While the stop watch is running, the user can press the record button to have the computer enter the current time in a list. The list can be used as a tool to collect data for experiments. This activity would work well in groups of 5-10 for 10-15 minutes if you use the exploration questions. It is meant to be used with other activites or resources.

Preparations for this activity:

• Prevent students from using the timer for any purposes other than the intended activity.