sounds like story of my DS.
I pulled him from kinder in Nov.
Began doing "independent study" thru school district...
That first week he wrote me a sweet letter, thanking me for "teaching him everything he wanted to know" and I am daily amazed at how intelligient this lil guy is!
He did the entire Scott Foreman 1st grade math in a few weeks. So his teacher gave him the Envisions 1st gr math book... he did the 1st "topic" (it is divided into topics ie time/ money/ adding 10thru 20 etc) in about 20 minutes. I had been told that it typically takes class 2-3wks/topic.
I had just introduced TIME to him the previous wk. He sped thru Envisions TIME topic in roughly 45min. Completed MONEY topic in same.... He is a superSponge! and he is Loving it! The fact he learns so rapidly and retains it is wild. Of course, this is relatively easy stuff.
Anyhow I VOTE homeschool your child if able to! Do it and don't look back

just be ready to FastForward! I figue my son will slow down once we get to more challenging stuff...
goodluck!