A unit-by-unit AP Precalculus study guide covering all three tested units, the four free-response task types, and the three mathematical practices — with links to all 30 free practice drills organized by topic.
The PSAT and SAT test the same skills, use the same digital adaptive format, and are the same length — but they serve very different purposes. In this guide, a 20-year SAT/PSAT tutor and Barron’s author breaks down the key differences, explains how the National Merit Scholarship Program works, and tells you exactly when PSAT prep is worth your time.
The digital SAT feels different from the paper test — shorter, no long passages, a calculator throughout. But is it actually easier? Here’s what the College Board’s own research, national score data, and the evolution of official practice tests actually tell us.