Carnegie Learning (MATHia)

AI maths tutoring grounded in learning science

We publish a full Four-Mismatches fit assessment for the student-facing exam tools first. For this one, the facts below are what we have verified — run the Four Mismatches Test on it yourself for your own students.

Independence: Addestra builds learning products too (MathsTutor, TinkerWell). We never review or score our own, and no tool pays to be listed or to rank higher — how we assess fit.

What it does

What the AI actually does — An ACT-R cognitive-tutor engine that model-traces every problem-solving action against a skill model and knowledge-traces mastery per skill.

Why it was built — Take Carnegie Mellon cognitive-science research on how people learn out of the lab into a tool that responds like a human tutor.

Who built it

Company: Carnegie Learning, Inc.
Founders: Steven Ritter · William S. Hadley · John R. Anderson · Kenneth Koedinger
HQ / origin: Pittsburgh, Pennsylvania, USA
Founded: 1998
Model: B2G
Ownership: Majority-owned by Madison Dearborn Partners (2020)
Exam systems: US Common Core
Languages: English

We record durable facts only — no funding-raised or user-count figures. Unverified fields are marked [TBD] rather than guessed.

Where it sits

Carnegie Learning (MATHia) is on the EdTech AI 100 map, in maths & adaptive practice, built in United States.

Related & alternatives

Sources

Carnegie Learning