Mon, 7 Feb 2011 10:12:28 -0800
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I made this sheet today because I work with kids from varying degrees of
mathematical backgrounds. They were not getting the lesson plan devised by
either the Educate NXT curriculum or the C.M. robotics engineering vol 1. So I
created a sheet that I hope plainly list the step involved in figuring out how
to make calculated, measured turns.
It does not include a lesson plan for the worksheet, but that is pretty easy-
Get your kids to create an attachment for the edu-bot that will hold a marker
in place over the middle of a wheel.
Get them to create a program that will allow the robot to spin/pivot in a full
circle. (Marker is over the outside wheel spinning. Only one motor should be
running so the robot circles around it's one inside wheel.)
Once you do that, you will have all the parts you need to run a course and make
measured turns using the worksheet I created.
A version of this lesson is in the Educate NXT, but in the author's obvious
superior math skills, he failed to include the equation on HOW to find the
distance traveled by the wheel, which you need to know in order to convert into
rotations. The Carnegie Mellon included it, and did a good job of stopping the
videos so I could talk about what was happening, but many kids didn't understand
WHY it was happening. The worksheet they created didn't have steps, which my
student forgot instantaneous to shutting off the video that explained it, so I
spent this morning trying to make one up myself. Hope it helps someone else as
well!
If the attachment doens't come through, please email me and I will send it to
you.
Regards,
Brandy
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