Day 4 - Clip 1
Clown’s Walk as Total Distance Traveled versus Net
Distance
In this clip, at the beginning of day four, Mrs.
Coombs discusses an assignment from the previous
day in which the students were first asked to
watch a video of Clown. They were to then use
the finger tool to produce a graph of Clown's
total distance traveled on the horizontal axis
in relation to Clown's net distance from his
starting point on the vertical axis. As part of
the discussion, Mrs. Coombs addresses an error
that the students had made the previous day that
their graph should show a change in steepness
when clown speeds up. Ms. Coombs begins by
discussing the fact that speed requires changes
in distance and time, and later asks the
students to consider empirically that the change
in total distance and the absolute change in net
distance at the end of the trip are the same.
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