<p>If you have an AB subscore of 1 or 2, something’s wrong. May want to review the AB basics first (definition of limit/derivative, related rates, differentation/integration rules, etc.). There are lots of resources on the internet…particularly MIT’s OpenCourseWare (18.01) or Khan Academy. Taking BC one year then AB the following year looks rather awkward.</p>
<p>Unfortunately I don’t know what AP review books are best – two should be enough though.</p>