Half-day and afterschooling is often a really good solution for young GT kids, sdrothco. It's often a lot like pre-K: still more play-based than heavily academic, and that can be a good fit for HG+ kids. Plus full-day classes can be a lot for a 5yo to handle: more sitting, more overstimulation, less time to read or think or be alone (especially for the introverts), etc. I wouldn't worry too much yet.

My DS8 enjoyed his half-day K class with a good teacher who "got him" and time to himself. Full-day first grade--the "learn to read" year around here--with a not-good teacher for GT kids was a disaster. Bad! Very bad!

All kids are different, of course, but I have hope that K will go okay for you. smile

Kriston