Stevenson (CA) is trying an integrated science curriculum for freshman and sophomores. Beginning this year, all freshman take a science course which incorporates biology, chemistry and physics (without the heavy math component), and will finish sophomore year with the second half of all 3 disciplines. In theory, kids will be prepared to take AP level courses in any of those 3 silos as juniors. In reality, I am unsure this will adequately prepare students to make the leap to AP, as teaching 3 full courses in 2 years seems unrealistic.