Monthly Archives: October 2012

Robot Copycats (or Matching Graphs)

I knew from their graph what would happen, but didn’t say anything. I didn’t have to. When the students saw the robot go fast, then slow in segments 2 and 3, they commented “It’s opposite.” … And sure enough, they were then able to correct the issue themselves with no intervention from me.

This summer, I reprogrammed the Scribbler 2 Robot from Parallax Corporation to be a physics apparatus.  (I intend the robot project itself to be the subject of a future blog post.). In this post, I describe three similar lab-practical exercises with the robots. In all three tasks, students programmed a robot with a graphical user interface so that it’s motion matched another robot. In the first, students programmed their robot with a position vs. time graph so that it matched one programmed by me. In the last two exercises, they programmed a robot with one graph (position vs. time or velocity vs. time) and the second robot with the other.

Continue reading

Advertisements
Position vs. Time Graphical User Interface

Giving Robots (and Students) a Head Start

“So we should just play with this, then!”

This summer, I reprogrammed the Scribbler 2 Robot from Parallax Corporation to be a physics apparatus.  (I intend the robot project itself to be the subject of a future blog post.) This lab practicum is the student’s first opportunity to program a robot themselves. Each group is given two robots, one programmed in advance by me that students studied in their first robot lab, and a second one which they must program themselves through a position vs. time graphical user interface. Students must understand how a position vs. time graph describes motion in order to get the robot to complete the assigned task.

Continue reading