The elements of a healthy educational environment

I was showing my class a video this evening in which the London Knowledge Lab's Professor Richard Noss enumerated the elements of a healthy educational environment: A teacher doing interesting things, a challenging activity, and peers with whom one can discuss. I'm finding that the elements for a healthy research environment are quite similar. You need, perhaps not a teacher, but a goal that is interesting. You need challenging activities. You need peers with whom you can discuss.