Students whiteboarded their results for the buggy lab, and it was a lot of small handwriting, long tables, and half-hearted conclusions. No one, in words of Brian Carpenter, was willing to bet me a burrito on their results. We did come up with a list of things we wanted to see in whiteboards in the future: large, legible handwriting, multiple trials, and visuals would be nice. On the way home last night, I was thinking what would happen if we lined up all the whiteboards together. That's where the picture came from today, with many students timing the buggy for 9 meters every meter. I didn't like how teacher-directed it was, but my students and I did like how convincing the results were:
I think it worked to convince many students that graphs would satisfy all of our desires for easy-to-understand, convincing, efficient whiteboards.