The honor classes i wouldnt worry about much. Its the AP, i didnt take AP Bio yet but i already took AP World history and scored a 4 on the test. Altho our teacher was a dick and was gone for so damn long, we never learned anything.
What i did was:
1. Go ahead in the book and take notes like this...
-----(Main subject)
--------(Sub category)
-----------Info
-----------Info
--------(Sub category) yada and so on
Not so much writing, only a sentence for each peace of info.
2. Find some1 who has either taken the class or is a buff in that area and MAKE them help you.
3. Use the net but always refer to a reliable source to make sure its accurate.
4. Try to get some1 to come up with questions to quiz you