New features in the updated PowerPoint are quite exciting, we suggest downloading it and trialing some of them. I just found this post too which adds some ideas like animating in PowerPoint, customizing, magnifying etc. Read the article and see if there is anything you could use to enhance your presentations. Remember that PowerPoint needs to be a means to an end, not the only tool you use, careful selection of the best way to learn something should always be at the forefront of our minds when making pedagogical decisions.