Aughhhh the machine ate my reply. So you get the sort version. I'd say go for the full day, Katie is bright and energetic. the structure is good for all kids.

I'll admit to some puzzlement about the two school thing but I know nothing about the US school system. As long as that part isn't and issue for transport and such like, I'd say full day.

If you sign up for the full day and it doesn't seem to be working for Katie, can you switch to half day?

As I look back over Erica's education, I realize that we never went wrong following her lead. Just before her 5th birthday, I took her to the kindergarten for her interview. The director of the school took us to visit one of the kindergarten classes and the teacher pulled Erica into a group of kids and treated her as if she were already a student. After about an hour, I called her and said it was time for us to go. I asked her if she wanted to go to kindergarten here in the fall. She said, "I want to go now!"

I remember the kids were all sitting in a circle on the floor and the teacher said, "I want you to tell me about things that change from solid to liquid - things that melt." Erica pulled away from me, ran to the circle with her hand up and said, "ice cream!" Then she sat down and didn't even look back to see if I was going to object.

The Director laughed and said I'd have to fill out some papers and give her some money but, if I wanted it, Erica could stay.
She stayed. That fall she went to the first grade with the rest of her class.

The thing is, if you let Katie's go for a full day and she turns out to have a problem, you can always find a way to fix it. But, if you don't let her try and it turns out you're wrong, what do you do?

Half day kindergarten is okay, but academically, students that get full-day reinforcement do better on reading tests given in the SECOND grade. Anything daily is better than intermittent schedules, though.

When our district went from half-days every day to all-day, every other day, our reading scores went into the rotter district-wide. But since we don't have the rooms for the classes, it remains in effect to save money on busing, because they don't have to run the extra mid-day buses.

I am going to agree - full day is better.