How can we prove to someone that the red buggy was faster than the blue buggy?
Discussion
Data
Dot Cars
Graph Matching
Discussion about our class data
We learned that while the distances/times for each group were varied, ultimately our class average speed data was very consistent. We concluded that this is a result of the ratio between the amount of distance and the time it takes for the buggies to cover that distance.
We talked about what might cause our data to be off. (Most common was timer errors, but battery life or contact against the wall or non-level floor could also skew our data)
Unfortunately, our dot car lab could not happen today because there were pieces missing from the kit. I spoke with our science supervisor to get those missing pieces.
Without the dot cars, we moved ahead with the schedule and we looked at our motion. Using a Vernier Probe, the students stood one at a time in front of the class and interacted with a motion sensor probe. As the students moved, data was simultaneously collected and a graph was shot up on the smartboard. We challenged ourselves by trying to match graphs based on distance and time. The students were thrilled!
No Homework because we were unable to finish the lab due to the missing pieces of the dot cars.
No comments:
Post a Comment