Is AP Calculus AB practice on Mistake Master free?

Yes. Every lesson, diagnostic, drill, and cumulative exam is free, and no account is required. Progress saves in the browser using local storage.

How much AP Calculus AB practice is available?

All 81 AB topics are covered. Each topic has a nine-scenario skill check, a ten-item diagnostic, and per-misconception drills. Each of the eight units has a twenty-item cumulative exam, plus an exam-length whole-course cumulative.

Where should I start with AP Calculus AB practice?

If a unit test is coming up, take that unit's cumulative exam cold as a baseline. Otherwise run topic diagnostics for material you have covered and let the results route you to drills.

Does AP Calculus AB practice include the BC-only topics?

Six topics inside Units 6-8 are BC-only and not on the AB exam. The unit pages badge them, so AB students always know what is in scope.

Is this aligned to the College Board AP Calculus framework?

Yes. Topics, unit weightings, and exam structure follow the published AP Calculus AB and BC Course and Exam Description, and every item carries an internal misconception code from a fixed taxonomy.

AP Calculus AB Practice

Three modes of free AP Calculus AB practice, each answering a different question: where am I weak, can I fix one specific weakness, and can I hold it together when the questions are mixed. All 81 topics across Units 1-8 are covered, and every mode is live for every unit. No account needed, and progress saves locally in your browser.

Mode 01 · Diagnose

Topic diagnostic

Ten items per topic, each written so that a wrong answer identifies a specific reasoning error rather than just a missed point. Your result routes you to the drills that address what actually fired.

10 items per topic
Every distractor is coded to a misconception
Sends you to targeted drills next

Start with Topic 1.1

Mode 02 · Drill

Targeted drills

Once a diagnostic flags a misconception, the drill attacks that one error from several angles with feedback after every question. The point is not volume, it is repetition aimed at the thing that broke.

One misconception at a time
Escalating subtlety across the set
Reached from your diagnostic result

Mode 03 · Verify

Cumulative exam

Twenty mixed items drawn from across a whole unit, with guaranteed coverage of its misconception codes. When you want the full picture, there is also an exam-length whole-course cumulative spanning Units 1-8.

20 questions per unit
Mixed topics, so you cannot pattern-match
Whole-course exam on the units page

Take a cumulative

The teaching layer underneath

Practice only helps if something changes between attempts. Every one of the 81 topics also carries a full lesson you can reach any time, without taking an assessment first. Each lesson walks the concept and closes with a nine-scenario skill check, where each wrong choice explains the specific error that produces it.

When you want lower-stakes repetitions, the calculus arcade turns the same misconception bank into fast rounds you can run in a spare five minutes.

Practice by unit

Eight units · 81 topics · AP Calculus AB framework

Unit 1Limits and Continuity16 topicsPractice ›
Unit 2Differentiation: Definition and Fundamental Properties10 topicsPractice ›
Unit 3Differentiation: Composite, Implicit, and Inverse Functions6 topicsPractice ›
Unit 4Contextual Applications of Differentiation7 topicsPractice ›
Unit 5Analytical Applications of Differentiation12 topicsPractice ›
Unit 6Integration and Accumulation of Change11 topicsPractice ›
Unit 7Differential Equations7 topicsPractice ›
Unit 8Applications of Integration12 topicsPractice ›

Six topics inside Units 6-8 (6.11-6.13, 7.5, 7.9, and 8.13) are BC-only and not on the AB exam. The unit pages badge them, so you can skip them cleanly or preview them if you are curious.

Why misconception-targeted practice works

Most AP Calculus questions are not hard because the algebra is hard. They are hard because they are built to catch a specific wrong idea. The limit of a function as x approaches a is not the same thing as its value at a. The derivative of sin(3x) is not cos(3x): the inner derivative still has to come out. After a u-substitution, the bounds of a definite integral belong to u, not to x. If you do not hold the misconception, the question is routine. If you do, more practice with it intact just rehearses it.

That is why this course is built around diagnose, then drill rather than around problem count. Working two hundred problems while a misconception is still in place rebuilds it two hundred times. Working a short set aimed directly at that misconception, with an explanation after each item, is what actually replaces it.

Common questions

FAQ

Is this free?

Yes. Every lesson, diagnostic, drill, and cumulative exam is free, and no account is required. Your progress saves in your browser using local storage.

How much practice is there?

All 81 AB topics are covered. Each topic has a nine-scenario skill check inside its lesson, a ten-item diagnostic, and drills for each of its misconceptions. Each of the eight units has a twenty-item cumulative exam, and there is an exam-length whole-course cumulative on top of that.

Where should I start?

If a unit test is coming up, take that unit's cumulative exam cold to find out where you actually stand. If you are working through the course or studying for the AP exam, run the topic diagnostics for material you have covered and let the results send you to drills.

Do I need the BC-only topics?

Not for the AB exam. Six topics inside Units 6-8 are BC-only (integration by parts, partial fractions, improper integrals, Euler's method, logistic growth, and arc length), and the unit pages badge them so you always know what is in scope. The exam format page covers exactly what the AB exam asks.

What about the free-response section?

The multiple-choice practice here trains the reasoning that free-response questions grade step by step. For the FRQ section itself, including question types and scoring, see the AB free-response guide.

How do I know if my score is on track?

Take a whole-course cumulative, then put your result into the AB score calculator to see roughly where it lands on the 1-5 scale.

Is this aligned to the College Board framework?

Yes. Topics, unit weightings, and exam structure follow the published AP Calculus AB and BC Course and Exam Description. Every practice item is tagged with an internal misconception code drawn from a fixed taxonomy for the course.

How long does a session take?

A topic diagnostic runs about 10 to 15 minutes. A single drill takes 5 to 10 minutes. A unit cumulative exam takes about 30 minutes, and the whole-course cumulative is exam length.