- Letting students work at their own pace meant that the quick&steady workers who finished worksheet 2 on Tuesday could move on, while the students who hadn't finished the motion detector lab could work on that.
- Individual and small group work meant I could answer questions for some of the quieter students who won't ask in front of the whole class. (I'm hoping the Mistake Game will help reduce this fear/anxiety/shyness, but it's only the first actual full week of school...)
- Letting students work at their own pace meant that some students decide that v=0 was their pace. While I tried to prod them, I couldn't spend the whole period on them.