<p>It might be the difference between granting you credit, and letting you take a higher level course. At my university, 3’s let you bypass lower level courses to take higher level courses, but 4’s and 5’s granted you credit for the lower level courses. If you needed the lower level course for your degree, you could skip it with a 3, but you’d still have to take it at some point.</p>
<p>Here’s how it works at my son’s school (he’s in engineering). You have to get a 3 on AP Calc in order to get into Calc 1. If you don’t get a 3, then you have to take precalc first. If you get a 4 or 5, then you test out of Calc 1 and go into Calc 2. However, they recommend everyone take calc 1 because it’s a higher degree of difficulty than AP Calc is.</p>
<p>I suspect they are both right. It sounds to me like the college in general accepts a 3 for credit, but the Engineering department sets its own bar a little higher and will count only a 4 or 5 for fulfillment of the department’s requirements for graduation.</p>
<p>^^What terinzak said. That is what we’ve heard too. My son plans to take calc 1 even though he would not be required to since they say it is more difficult. His thought is it is better to be ahead in calc 1 than behind in calc 2.</p>