<p>It is a pre-req at our HS that a student take Bio, Chem and Physics before those respective advanced courses (only Bio is AP, the other two are Chem II and Physics II). There are “regular” and “pre” courses available for those though, pre-AP Bio, pre-Chem II vs Bio and Chem I, for example.</p>
<p>I am not sure how a student who has never taken the intro course is expected to handle what is expected in the AP/II course.</p>