Check this blog out and its maths pencasts.
I've been worrying how my students will study for next quiz over the unequal heating of earth's surface. I've drawn diagrams in class, had them paste in diagrams we created and still I wonder what they'll do when I'm not there to explain it again. Heck I've been teaching this grade level for many years and I know they'll think they know it until they get home and then it will >>>> puff<<<<<<< magically disappear.
So I'm using my Echo pen to make a pencast with another explanation they can download and listen to at home. OK....maybe it wasn't quite as Easy as 1-2-3...but it was darn close to that easy. I think if I just use the resource more I won't forget all the steps and I'll be all set.
Pencast from “Popular Mechanics” feature article by Michael Belfiore about Space Exploration Technologies – SpaceX and the building of the world’s biggest amateur liquid fueled rocket engine – MERLIN.
In this pencast propulsion chief Tom Mueller, explains the inner workings of the workhorse engine he and his team designed and built for SpaceX.
This is a lecture capture, using pencast technology, of an introductory level organic chemistry class (ie. nursing chemistry, GOB, or pre- organic) that looks at 10 of the basic functional groups relevant to biology and biochemistry from a chemistry perspective. Concepts like intermolecular forces, physical properties, and basic reactivity are discussed.