There was a non-verbal autistic kid there, too. I played "clap-hands" with them every day, apparently the only human interaction (apart from their parents) that they had.
We moved when I was 5, and I went to a normal school after that. I don't remember much about it (all the above is stories my parents told me later). Luckily we moved to a small village where the teacher had enough time to continue giving me the personalised attention I clearly needed. Then I got shipped off to boarding school and the rest of my schooling is a dark, terrible mess of anger and violence.
It totally worked for me. I hated school, except that one.