If there is a way to make turn-taking visual for him, it might help. For example, in my former classroom, in the past, I have created a turn-taking board with detachable pictures to show whose turn it is. Also, I have used a "wait card" or a time to…
I run AutismClassroom.com and AutismList.com website directory. I am the autihor of "How to Set Up a Work Area at Home for a Child with Autism" and "How to Set Up a Classroom for Students with Autism." I also have a 3 year old and a 20 month old.