One thing to focus on is social skills. Alot of kindergarten is just social, I think, esp. if kids weren't in daycare. Learning the rules of the road. Keep your hands to your self, sit down when the teacher says to sit down! Making friends and being a friend. Working on fine motor skills like holding a pencil, writing letters, cutting with scissors.
These sound like silly skills but they really aren't. A fair number of posters whose kids skip kindy later write of how their kid has poor executive function, poor writing skills, ADD, etc.
At the end of kindergarten last year, the teacher apologized, saying she didn't think he learned that much there. He got
> 160 on the RIAS IQ test. On the other hand, he is very popular! All the little girls want to sit by him in class, LOl.
For now, that's good enough. We work with him at home on school things, and he's very happy.
