Great questions, mon. As a reminder, he is in first for about a third of the day (reading, writing, "morning work"). Two-thirds of his day is still in K.
How much can you ask for in first grade? Do you feel like you can ask for anything else since the skip? Or do they think you better be happy with all they've done, and would see asking for more as evidence that the skip is unsuccessful because parent and child are unhappy?
I don't know. We did not request the acceleration, exactly--DS's teacher initiated it (her idea, but we okayed it) and when she did not get much movement, she asked us to try, so we also issued a request, which made things happen. It was a fast and easy thing once we sent one email. But I DO definitely worry that asking for anything would be seen as evidence that "it didn't work," which might hurt us next year. We are REALLY hoping for 1/2 split, but I don't know how likely it is. So if not, we would want him to continue to travel to the next grade up part-time.
I have only spoken to his 1st teacher once but from what she said, she absolutely thinks she belongs there academically.
In a way, I wouldn't care if he went back to K. He is not going to learn anything much in K. I have accepted this. That's not so terrible if he is happy and doesn't feel totally frustrated. But his K teacher felt like he was completely wasting his time and could at least pick up writing skills in 1st.
The question as to what he likes about school is a good one. He loves specials. He likes his friends. He likes earning good behavior rewards, which he does in spades (he is a pleaser). I think he likes some of the independent math games? Oh, he likes writing in his independent journal, where he gets to write his own stories.
Above all, I want him not to hate school.