I do NOT think they should be used in pe class. Most of the games require you only use you're arms, which mostly consits of just swinging them back and forth, or making small movements, like twisting or twitching. Tell me, how is that exercise? It's not! Doing that will only make you lose maybe 25 calories an hour or so. Even though a few Wii games require you to move, like Wii boxing, that does not mean that should replace running. Kid's these days get enough video games at home, school's shouldnt have to buy hundreds of dollars worth of equipment just to satisfy their boredom. School is to teach students about the real world, not give them brain rotting video games. If a school is going to get a video game system that exercises a kid, I say go with DDR. That requires much more movement than a Wii, because it incorporates the legs, which are big on exercise. Plus, it requires much more coordination, which is important for a child to learn. Or, better yet, stay with the traditional method of PE, such as jogging and touch football. Keep the video games where they belong (*couph* garbage! *cough*), not in our schools. EDIT The guy above me is right. The cost for Wii's are ridiculous, and they limit only maybe 2-4 kids per play, which is not nearly enough. This could result in fights, which could also lead to damaged equipment.