Thank you Portia, I saw that thread, which is what made me aware of the program. I found a review of the program on youtube which mentions that sessions are 20 minutes long, so I think it could work. I wish they offered a trial period though.

I'm also looking at beast academy, it looks really challenging.

I wish I had the option to home school just for math. The school meets my kid's needs for the most part in other subjects, but the math curriculum is too slow.