Hi Gerry:
Annimations in PPT presentations are helpful, especially if they dramatize a process or concept that can be explained by a moving visual. As you say, you can add or amplify what is occuring, or contribute additional information, which I think all PPT's should include anyway. We want to use the "tool" of PPT to augment what we have to say (and avoid having the PPT dominate the lesson, or teaching).
Regards, Barry
