@417WHB Same experience with both my kids. Highest levels attract the top students and move at the most rapid pace. While every class is perhaps more difficult than what they would be offered at the local public, the AP or very advanced classes are truly colleg level. Also, these classes tend to be very small so I think that increases the "on"time kids have during class time. My kids have compared notes to their friends, in public, a private and at the same schools they attend who aren’t in the same classes and the workload varies a lot.