- Created by: Nick Slinglend, San Diego City College
- Type of activity: hands on activity, small group
- Course level: Pre Algebra
- Topic: speed and unit conversion
- Materials: On tennis ball per group, stop watch feature on cell phone, tape, and yard sticks
- Time required: 20+ minutes
- Description: Students will determine average speeds from data collected and convert units for speed problems. Students try to roll the ball with a prescribed average speed based on intuition. Then, based on unit conversion we will see how accurate the rolls really were.
- Implementation notes (follow up/discussion questions, pedagogical recommendations, etc.): see attachment below
