https://locusmath.org/blog/ Notes from the team building Locus: how the grader works, what we are shipping, and what we are learning about teaching math. en Fri, 04 Sep 2026 00:00:00 GMT https://locusmath.org/blog/multiple-choice-teaches-guessing/ https://locusmath.org/blog/multiple-choice-teaches-guessing/ Fri, 04 Sep 2026 00:00:00 GMT Locus Locus has no multiple-choice math. Every numeric or symbolic answer is typed, and a computer algebra system decides whether it is right. https://locusmath.org/blog/redo-the-ones-you-missed/ https://locusmath.org/blog/redo-the-ones-you-missed/ Fri, 04 Sep 2026 00:00:00 GMT Locus A missed problem should come back later, with the same skill and different numbers. What to bring back, when to bring it back, and why the correction is where the learning happens. https://locusmath.org/blog/why-we-rate-problems-like-chess-players/ https://locusmath.org/blog/why-we-rate-problems-like-chess-players/ Fri, 04 Sep 2026 00:00:00 GMT Locus Locus gives every student a rating and every problem a rating, on the same scale. It is the Elo system from chess, pointed at a different kind of match.