I don't know of a video on the website that shows that. They are very easy to implement though. The capital letter at the beginning of a sentence is just taking your hands, one on top of the other, and moving the hand on top up vertically while making a "wooop" type sound. The period is: point in the air with your finger at the end of the sentence also with a sound effect. The air white board is simply drawing a large rectangle in the air as you say zip, zip, zip. Then clean the bottom corner with a squeak sound. You are then ready to begin your lesson on the air white board.
There could be a video on YouTube somewhere that shows a teacher using these in a class, but I haven't seen it yet. (Something for us to think about when making WBT videos this upcoming year.)
Good luck to you!
Susan Floyd
WBT Intern
2011-12