If Money is an issue, DS7 uses EPGY with a home school group. No instructors, but an easy to follow online program. Cost was $135 for the year. This has worked well for DS7. We are also using CTY for summer school this year for Reading and Writing (Not his streangth) the program has been a good fit and challange for him. Lots of writing. We avoided CTY math due to cost, I heard both programs are similar.