In the end I decide to make a film about the practical ways you can use powerpoint in the class:

I mentioned in my first posting (and in the video) that the training you need to use it is minimal - one part of that training could be 'custom animation', or the way and the order you make text appear on the powerpoint presentation.

Here's a short two minute video to help with that - in this case showing how you can use it to make a powerpoint file for simple revision games: