Debbie,
This is wonderful news. I�m so pleased for you all! Kudos to Mr. Principle too! He sounds like he has been keeping up with his continuing education also.
Your son and mine have a lot in common. Both are the youngest in the grade with additional subject acceleration in math. Mr. Wiggly is lucky to have been offered this in 2nd grade rather than having to wait until 5th like my son. As you may remember, we just turned down a (second?) skip. If it had been offered earlier during his 2nd -4th grade years, we would have snatched it. Perhaps that might be an option you could consider sooner (rather than later). Just my BTDT perspective.
My son was a little apprehensive about entering another class while the other students were already settled in. He also knew that his situation would not help him gain popularity with his base line grade. The desire for further challenge was stronger than his fears and he enjoyed �school math� for the first time. It sounds like Mr. Wiggly will also appreciate this opportunity.
You have done well advocating for your son!