Day 22: Buggy Data Collection
This year, I decided to ask the class if they wanted to agree ahead of time which variables to make independent and dependent. They enthusiastically said yes, and they wanted time as the independent variable. Then I asked them to brainstorm possible data collection methods that would have time be independent. Then they were free to choose a method and free to determine how much data to take in the remaining time. Hopefully, this will make post lab whiteboard discussions clearer. Hand graphing and equation of BFL for homework.
Also, I just went with kid's natural inclination to measure distance rather than force them to use position. Later, we'll discuss how the graphs would change if we had graphed position instead. I'll likely break out the motion detectors for them to experiment with using the buggies and testing their predictions.