AP Precalculus
Free, misconception-targeted AP Precalculus practice, now in build. Diagnose which function-reasoning mistakes are costing you points. Drill only those, with feedback after every question. Verify with unit-length cumulative exams. Units 1 and 2 lessons are live now; diagnostics and drills arrive with the data drops.
Practice
Three modes, one workflow
01 · Diagnose
Topic diagnostic
Short topic-level assessments built around documented precalculus misconceptions. Each result routes you to the specific drills that fix what tripped you up. Arrives with the unit data drops.
02 · Drill
Targeted drills
One misconception at a time, MCQ format, varied scenarios, feedback after every question. Reached from your diagnostic result. Arrives with the unit data drops.
03 · Verify
Cumulative MCQ
Unit-length exams that mirror the AP Precalculus multiple-choice format. Use as a baseline before a unit test or as a final check after drills. Arrives with the unit data drops.
Reference
Resources and guides
By unit
The course at a glance
Why misconception-targeted, not problem volume
Most AP Precalculus points are lost to a small set of predictable reasoning errors: treating average rate of change as instantaneous, splitting logs over addition, confusing a hole with a vertical asymptote, shifting a graph right when the equation says left, and solving trig equations in degree mode when the exam requires radians.
If you hold a misconception, more practice with it intact reinforces it. The fastest path to a higher score is identifying which two or three misconceptions are costing you points and addressing them directly. That is what Mistake Master is built to do.