<p>What is “IB Enviroments”? There are not 5 IBs, I think there are 2, history HL , math SL. SL math can be a 1 yr course, HLs are often taught side by side with APs so kids who sit the IBs also sit the APs in the crossover subjects (history, Eng, sciences, math. Depends on your school). The kids with the full IBD often come out with 10 APs without studying them all separately. </p>