Better teaching: Demonstrations

     
"We are better off not doing [a] demonstration at all unless you get them to predict an outcome first. " Link Blogpost from neilatkin.com

So use mini whiteboards

Confuse Students to Help Them Learn Link "It seems that, if you just present the correct information, five things happen," he said. "One, students think they know it. Two, they don’t pay their utmost attention. Three, they don’t recognize that what was presented differs from what they were already thinking. Four, they don’t learn a thing. And five, perhaps most troublingly, they get more confident in the ideas they were thinking before.
From the chronicle.com