Poser (or better Daz Studio cuz it's free) would make a great introduction to computer graphics at the grade school level, but even the ine most "liberal" communities in the US, I suspect that the nudity would be a deal breaker. Even if it were an elective, someone would object, conservative groups would get involved and headlines about the school teaching "computer porn" would appear followed immediately by the school backing down.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken