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Pick a unit to drill it head-on. Each unit has 4 different test variations so you can keep retaking until you master it.
Limits algebraically and graphically, continuity, and the IVT.
12 questions · ~18 min
Power, product, quotient, chain rules; implicit & inverse derivatives.
12 questions · ~18 min
Related rates, optimization, MVT, curve sketching, and motion problems.
12 questions · ~18 min
Antiderivatives, Riemann sums, FTC, u-substitution, and integration techniques.
12 questions · ~18 min
Slope fields, separable ODEs, exponential growth & decay.
12 questions · ~18 min
Average value, area between curves, volumes of revolution, and motion.
12 questions · ~18 min
How unit tests work
AP Calculus AB covers the core of a first-semester college calculus course: limits and continuity, differentiation, applications of derivatives, integration and accumulation of change, and differential equations. The course is built around three big ideas that recur throughout every unit: change (the derivative), limits, and the analysis of functions. Students learn to interpret calculus graphically, numerically, analytically, and verbally, and they are expected to justify their reasoning rather than simply produce answers. Roughly speaking, derivatives and their applications dominate the first half of the course, while integrals and the Fundamental Theorem of Calculus anchor the second half. Where students most often struggle is in moving beyond mechanical computation toward genuine conceptual understanding: knowing not just how to take a derivative but what it means in context, when a limit fails to exist, why a function is or is not differentiable, and how the definite integral represents accumulated change. Free-response questions reward careful setup, correct units, and explicit justification using theorems like the Mean Value Theorem or the Intermediate Value Theorem. Strong preparation blends conceptual review with extensive timed practice on released free-response questions, deliberate work on no-calculator algebra and trig fluency, and attention to calculator-active problem types such as numeric integration and finding intersection points. Students who can read a graph or table and translate it into a calculus statement, and who write organized justifications, consistently outperform those who memorize procedures. Mastering notation, units, and the language of justification is as important as the calculus itself.
Two equally weighted sections totaling 3 hours 15 minutes: Section I is 45 multiple-choice questions in 1 hour 45 minutes (30 no-calculator in 60 min, 15 calculator in 45 min), and Section II is 6 free-response questions in 1 hour 30 minutes (2 calculator in 30 min, 4 no-calculator in 60 min). Each section is 50% of the score.
Raw multiple-choice and free-response points are combined into a weighted composite that College Board converts to a 1-5 AP score, with 3 generally considered passing.