Yes! And of course I have to give the example of my seventh grade history teacher. He's really into innovation, and he's the one who argued the school board into letting him get netbooks (they're little laptops) and start using MinecraftEdu in the classroom. He uses Minecraft as a learning tool. I think he's given a TED talk on the subject, actually. But the best part was the Independent Learners group. If you had good grades and were good you could get out of the group that was just taking notes on his slideshows (though he was very fun to listen to, always very active and totally engaged in what he was teaching) and be independent. The point was that he gave you the resources to learn the material for the unit and you made a way to teach it to someone. You could make a video, write a story, make a comic, illustrate the lesson, make something in Minecraft, anything as long as it got the lesson across. For the Africa unit my friend and I wrote a musical! It was so much fun, and I remember the material, because you can't write a song about something and not remember it.
I'm not sure if I've gushed about him before or not, but he is undeniably my favorite teacher ever, and he taught me how fun it can be to learn things by setting me out on my own.