The first thing I have to say about this is "OMG!!! THIS. IS. AWESOME." What an amazing way to combine STEM with Physical Education. Eric explains everything here: goo.gl/7b6Mf5, including full explanations of 15 (yep, 15!) activities that students can do using the Makey, Makey and their Chromebook. Most activities also include a video showing the activity in action.