9-10 yr old pitching mechanics

Question
I am teaching these kids to pitch for the first time in their lives and am wondering what techniques/drills to show them.  I am going to use the stretch as opposed to the wind up for simplicity and balance.  Also, what age is safe for a curve ball and how can a young kid grip the ball in order to throw as a fastball but still have a small amount of "break". Thanks

Answer
I'm not sure if i could tell you any specific drills without knowing what your trying to accomplish. I like that your teaching the stretch for simplicity sake.
As far as a curveball, I'm not sure that the kids could properly use the pitch if they have never pitched before. Until you find a kid that can use it, just encourage the kids to throw strikes and have fun.
you could teach a change-up instead.
-Jon