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When the Tutor Is a Model: Learning Gains, Guardrails, and the Quiet Rise of AI Co‑Tutors

Opening — Why this matters now One‑to‑one tutoring is education’s gold standard—and its most stubborn bottleneck. Everyone agrees it works. Almost no one can afford it at scale. Into this gap steps generative AI, loudly promising democratized personalization and quietly raising fears about hallucinations, dependency, and cognitive atrophy. Most debates about AI tutors stall at ideology. This paper does something rarer: it runs an in‑classroom randomized controlled trial and reports what actually happened. No synthetic benchmarks. No speculative productivity math. Just UK teenagers, real maths problems, and an AI model forced to earn its keep under human supervision. fileciteturn0file0 ...

December 31, 2025 · 4 min · Zelina
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ExaCraft and the Missing Layer of AI Education: When Examples Finally Adapt

Opening — Why this matters now AI has learned how to explain everything. Unfortunately, it still explains things to no one in particular. Most educational AI systems today obsess over sequencing: which lesson comes next, which quiz you should take, which concept you’ve allegedly “mastered.” What they largely ignore is the most human part of learning—the example. Not the abstract definition. Not the symbolic formula. The concrete, relatable scenario that makes something click. ...

December 13, 2025 · 3 min · Zelina