Thanks everyone. This is helpful - it is getting me focused on what I need to do instead of what I think other people should be doing.

I'm anxious about the timing not because I'm worried about my son getting behind in a month (although it's annoying that school is taking up all his time and interfering with his learning), but because I'm worried that he will develop a negative attitude about school and bad habits. 20 school days is a long time.

My strategy will be to gather information, not convey it. But I will make sure to arrange for follow up communication. The teacher has been responsive so far and I will get contact info for the gifted coordinator.

Catalana - I am not sure if the pullouts are taking place and he is not included or if they have not started. We have no idea what's going on. OTOH, if people aren't getting pulled out, then what is the gifted teacher doing all day? OTOH, my son doesn't seem to be aware of anything likse this going on.