ACT Study Guides
The ACT is a paper-and-online admissions test scored from 1 to 36, with four required multiple-choice sections — English, Math, Reading, and Science — and an optional Writing test. The breakdown below mirrors the official ACT Test Description; every topic page includes notes and practice questions.
4 sections · 40 topic guides · all free
ACT
How to use these guides
Each subject page lists every unit in the official framework. Click into any unit and you get four short paragraphs of notes, a set of key ideas you can copy onto a study card, and four practice questions with explanations you can reveal one at a time. The questions are calibrated to be slightly easier than a real exam item — they confirm understanding, not simulate test-day difficulty. For full-length practice, work through the released exams that the College Board and ACT publish on their official sites.
If you have a target test date, build a schedule first. Our study planner turns a target date into a six-week calendar of unit reviews and timed quizzes; the quiz tools page explains how to drill efficiently using the questions on this site.