I had a number of people ask me. Yes, my school did show Obama's speech. We recorded it, and let students watch it during their social studies class. Yes we sent a permission slip home ahead of time, if parents said no then their students were not shown the speech. Yes we had parents opt out - about 4 of them in the entire school.
Most of the opinions were this- Regardless of what they may think of the President, any role model telling your 11-13 year old to stay in school, is a good one.