November 2, 2010
I showed the class the web page on lesson plans
for 3 handles and brought in an example I had made
with a lever being moved up from underneath
and lever being moved by a connection through it
and two levers being moved up and down with "handles" or cams hitting them from above.
Then they made examples.
Through Over
Under
Under, over, and through
They are going to make a poster of their machines.
