If the school only offers 8 AP classes, then I would say 'what is the hurry'. If he can do one AP in 10th grade, 4 APs in 11th and 3 in 12th. Then he can finish them all.

AP English and AP history (US or world) usually go together. AP Bio may have prerequisites. Is he taking biology or chemistry this year? If not, going straight to AP bio may be a challenge. If your son really wants to do AP bio and doesn't have any background at this moment, he may take a class in a local junior college or a distance learning program such as CTY over the summer.

We want to encourage our kids to take on hard classes but we also need to make sure that they can be successful in them.