About this project
Mistake Master is a diagnostic and remediation tool for AP courses, built by a teacher who got tired of watching the same wrong answers come back semester after semester.
Why this exists.
Most wrong answers in AP courses aren't random or careless. They trace back to a small, knowable set of misconceptions: confusing speed with acceleration, treating mass and weight as the same thing, assuming friction always opposes motion. The same handful of confusions surface in every class, every year, in roughly the same proportions.
Students rarely see this pattern. They see one wrong answer at a time, get a grade, and move on. The misconception that caused the miss in October stays alive, ready to surface again on a unit test in January, and again on the AP exam in May.
Mistake Master tries to make the pattern visible. Every wrong answer maps to a specific misconception. Every miss triggers adaptive remediation aimed at the underlying confusion. Progress is tracked across units, so the codes that keep coming back keep getting checked.
What's different about it.
Every distractor is a named misconception.
Wrong answer choices aren't filler. Each one is mapped to a specific, research-anchored confusion, so a miss tells the student something useful instead of just lowering a score.
Two correct in a row clears it.
A misconception leaves the active queue only after two right answers back to back. One lucky guess won't do it. The bar is real mastery, not surface familiarity.
Codes that recur get re-checked.
Sign errors, vector confusions, and other core misconceptions surface across multiple units. A code cleared in kinematics still has to survive forces, energy, and momentum.
Who built it.
What's next.
The project is in active build through 2026. AP Physics 1 is the proving ground. If the misconception-coding approach holds up there, the plan is to extend it to other AP courses and standardized tests, with an SAT Math track already in early design.
If you're a teacher, a student, or just curious, I'd genuinely like to hear from you. The teacher page has the formal pitch. The email's the same either way.