Thanks much for your suggestions. The VP ended up calling me this morning and cancelling our meeting, saying she had talked with the principal, and all agreed they can't discuss this with me till beginning of next school year because they don't set schedules till August. She reiterated their goal is to accommodate advanced learners within their grades rather than moving to different grades, but she did end the conversation saying DS is on their radar screen and they do understand he has advanced math abilities.

I'm meeting with the educational counseling specialist next week (she did his testing last summer) to discuss viable options for us next year if he's unable to attend 2nd grade math. I'm going to discuss your suggestions with her, and ask about any specific math achievement tests we could use to help make our case next year if we need to.

Actually, as I think out loud, I should probably ask if the school can administer a math assessment for him at the end of this year or beginning of next. I personally think he's ready to skip one more grade level and go directly to 3rd grade math, which may have fewer scheduling issues. They used STAR Math to assess him at beginning of K, but I never received results, and I don't know anything about that program. Thanks for all your suggestions, your response is really helpful.