@SouthOCGal I decided to go to a math camp because I’m a nerd and would rather spend a month inside doing math problems than out having fun.
However, if you’re asking why from 6th to 9th grade, then it’s because a video game introduced me to programming hacks and like a snowball, I went to a camp to learn more and play video games with friends and then I just kept delving deeper. Math came as a sort of logical progression from computers. I knew I was ready when I wanted to do it. I was genuinely interested in the subject and the opportunity to learn more about it seemed more exciting than traditional summer camps in my area.
However, if he’s like me and plays far too many video games then you might want to consider a short program where you play video games with other friends and get an introduction to coding. I attended a camp similar to this and it really propelled my interests and helped me focus in on my passions. The camp I attended was an ID Tech Camp and although I didn’t learn a whole lot about programming, I had a boatload of fun and remember it fondly to this day.
The math camp I went to was at Stony Brook University.
I’d suggest, if he’s willing, to do a short math camp to see if he likes it and then do something else fun for the summer. Check your local universities, they often run short week-long camps.