Calculus in high school over two years -- why?

<p>UCBalumnus, thank you for the very clear outline of A,B,C,D options for what to do in college after making a 5 on the BC Calc exam. Son’s HS offers BC calc to kids who took honors pre-calc, and does not make them take Calc AB first. My son is a freshman STEM major and chose C, and he did fine in Calc III and is loving Diff Eq this semester. But last summer, it was really weighing on my mind. Just as most parents on here, we all want our kids to start the first semester and be successful, and this decision is a tough one.</p>