Splash is a seriously awesome program. MIT runs it the weekend before Thanksgiving every year. College students and older can go teach pretty much anything, and then 7th-12th graders can sign up for whatever combinations of classes they want. I took Fractional Calculus and Make Chainmail there when I was in high school, both of which were awesome. So, everyone should register to teach if they can, and I highly recommend the program for kids in the right age group, autistic or not. You can register here as a teacher or student, and they have other cool programs too. I've seen people from as far away as New Jersey come up to Boston for Splash.