December 12, 2014 at 10:18AM

This actually happened last hour when a student solved the two ramps problem. #180tweets

December 10, 2014 at 09:29AM

More goal-less problem solving. One whiteboard not enough! #180tweets

December 05, 2014 at 08:44AM

Newton’s 2nd with mod Atwood and friction. First looked at Ft changes when sled released, then Ft vs acc #180tweets

December 03, 2014 at 10:12AM

Goalless problem solving. #180tweets

December 01, 2014 at 08:44PM

Today we summarized and organized the historical evidence about light as a wave and a particle. #180tweets