AP Calc AB cheat sheet: a unit-by-unit cram chart.
You cannot take this into the exam, and College Board gives AP Calculus AB no formula sheet, so the cram chart below is what you review the night before. It pairs each of the eight units with its weighting on the multiple-choice section, the one idea being tested, the tool you have to have memorized, and the mistake College Board itself names for that unit. For the unit-by-unit course guide and a study plan, see how to study for AP Calculus AB.
What an AP Calc AB cheat sheet is (and what you can bring)
On this page, “cheat sheet” means a revision aid rather than contraband: a short, high-yield summary of what each unit actually tests. College Board’s own list of what to leave outside the exam room names books, notebooks and notes, so nothing you write goes in with you. And because AP Calculus AB is not one of the nine subjects given printed reference information, no formula sheet is waiting for you either: you walk in with everything memorized.
The one tool you do get is a graphing calculator, and it is permitted on only two of the exam’s four parts: multiple-choice Part B and free-response Part A. You work the remaining two by hand.
What a chart like this adds to a bare formula list is context — what a unit is actually asking you to do, and the setup or notation slip that turns a correct calculation into a lost point.
Cheat sheet vs the formula sheet
They do different jobs. Our formula sheet page is the full list of derivatives, integrals and theorems you have to commit to memory, a list you need precisely because the exam hands you nothing. This cheat sheet is shorter and concept-first: it reminds you which tool each unit calls for, how much that unit is worth, and where students actually lose the points, which a raw formula list leaves out.
The unit-by-unit cram chart
Eight units. Every row gives you three things: what the unit is about, the tool you have to walk in knowing, and the mistake to avoid. The percentage beside each unit title is College Board’s published weighting for the multiple-choice section. College Board does not publish a per-unit weighting for the free response at all, so no row here claims one.
Two units share the top of that range: Unit 5 and Unit 6 are both 15–20%, tied rather than ranked. If you are short of time, those two are where the multiple choice concentrates, and Unit 3 and Unit 7 are the lightest at 5–10% each.
Unit titles and weightings: AP Calculus AB and BC Course and Exam Description, PDF p.20 (printed 15) and p.204 (printed 199). Named student mistakes: the “Preparing for the AP Exam” section of each unit guide, PDF pp. 34, 56, 72, 84, 96, 114, 134 and 148 (printed 29, 51, 67, 79, 91, 109, 129 and 143).
Where students lose the most points
On the free response, most lost points are not the arithmetic: they are the justification. College Board weights its Justification practice at 35–60% of the free-response section against 10–20% of the multiple choice, while its Communication and Notation practice never appears in the multiple-choice section at all. Both of those live only where you have to write something down.
In practice that means Readers want a correct setup, proper notation including the differential and the limits of integration, and a reason for each conclusion stated in the context of the problem. A right answer with missing work or a bare number does not earn the point. Our AP Calculus AB FRQ guide works through the scoring question by question.
How to use the chart in your last week
Take the chart one unit at a time. Read a row, then work two or three problems from that unit. Grade yourself against the idea-tool-mistake row rather than the final answer, and check your setup and justification the way a Reader would.
Work down the chart by weighting if time is short. Close the gaps with the Progress Check answers by unit, keep the formula sheet open so the tools stay memorized, and run a practice raw score through the AP Calculus AB exam score calculator to see where it lands.
Frequently asked questions
Quick answers, checked against College Board.
Can I bring my own cheat sheet into the AP Calculus AB exam?
No. Notes of any kind, handwritten or printed, stay outside, and nothing is handed out on the day to replace them. Your only permitted aid is an approved graphing calculator. Use a sheet like this one in the week beforehand, so that by exam morning it is in your head rather than in your bag.
What is the difference between an AP Calc AB cheat sheet and a formula sheet?
A formula sheet lists the raw formulas. A cheat sheet adds what each unit is worth, the key idea, and the mistake College Board names for that unit, which makes it better for last-week review.
Which AP Calculus AB units are most important?
Two are tied for the top, not ranked: Unit 5 on analytical applications, and Unit 6 on integration, both carry 15–20% of the multiple-choice section. Neither outranks the other. The lightest are Unit 3 and Unit 7 at 5–10% each.
Does AP Calculus AB give you a formula sheet?
No. College Board publishes a list of the subjects whose students receive printed reference information on exam day, and AP Calculus is not on it. So every formula, theorem and test in the chart above has to come from memory, which is exactly why a last-week review sheet is worth building.
What is the best way to cram for AP Calculus AB?
Work one unit at a time, starting with the two heaviest. Review the cram row, then do two or three problems and check your setup and justification rather than just the final number, because that is where the free-response points actually sit.
Is AP Calculus AB hard?
It is one of the more demanding AP math courses, though the pass rate is healthier than its reputation suggests. Our AP Calculus AB difficulty guide gives an honest breakdown.