Well, this is definitely the start of a great adventure! Since posting this, we got a call from DS5's nursery school teacher asking about what DS was trying to tell here at school. (He's loved math and patterns since a very young age and was telling his teacher about a particular number sequence he likes -- Fibonacci numbers). I took it as a positive sign that the teacher contacted us. After a family trip were going to contact the school to see about next steps. We checked the curriculum this weekend and I think DS would be a candidate to skip kindergarten. A guess would be that he's ~ 2 grades ahead of his agemates in most subjects. Most of what he's learned has been though dinner chats about numbers, playing math games, and reading. The math is almost to the point where I'm running out of ideas on what to teach him about!

JB