Thanks Grinity,

I've looked at Khan in the last few weeks and spent a good deal of time there today. I also showed the kids a couple videos and they seemed excited to see more. Alcumus looks like fun and I see we have a Math Circle group in a nearby city as well. Thanks for the leads - these are all very helpful ideas!

After tremendous feedback from this forum and discussing with DH, I belive it would be advantageous to get DS tested by someone who could adminster the test without the write-up. I'll ask the DR. we are planning to see for DD if she will perform the test w/o follow up consultation for DS. Should there be indication for subject accelearation, we can address more confidently with the school and find out what options they may be able to provide.