Why we built an offline study app generator instead of another course platform
Study materials often fail for a simple reason: they stop at content. A PDF or note set can explain a subject, but it cannot react when someone gets…
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Completion Is a Weak Memory Model
A learner can finish a lesson on Monday, answer the drill on Tuesday, and stare at the same idea on Friday with nothing to say. The checkbox still s…
From Bayesian to deep knowledge tracing — upgrading NumPath's student model with a PyTorch LSTM
BKT told us how well a student knows subtraction-with-borrowing. It had no idea that a student who reverses digits on subtraction problems probably…
Building a mistake taxonomy for dyscalculia — 8 error patterns, rule-based, no ML required
"Wrong" isn't a diagnosis. When a student answers 32 − 9 = 37, they didn't randomly guess. They subtracted in the wrong direction in the ones column…