Rori — an AI math tutor on WhatsApp in Ghana
Ghana
A conversational maths tutor delivered over WhatsApp: a Ghana RCT found an effect size of ~0.37 (≈ an extra year …
United States of America · Mountain View · See the United States of America profile · See the Mountain View profile
Evidence: Observational / pre–post Top 8% 73/100 · Ask Evidence Copilot about this practice
Khan Academy's LLM tutor that guides students with questions rather than answers, scaled to 700,000+ students across 380+ US districts — though a Stanford study found access alone doesn't improve outcomes.
Khanmigo is Khan Academy's LLM-based tutor that coaches students through guided questioning rather than giving direct answers, and provides teachers with lesson plans, rubrics and grouping tools; usage grew from approximately 68,000 users in 2023–24 to over 700,000 students across 380+ US district partners in 2024–25, including a 170,000-student state rollout in Arizona.
A Stanford study found that merely offering the tool did not create meaningful engagement or improve reading outcomes — only about 53–61% of students used it even when given time.
Implementation detail (cost, timeline, staffing, conditions for success) is not yet available for this practice.
Philanthropic / foundation funding
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Where this practice's information was retrieved from, and when.
Ghana
A conversational maths tutor delivered over WhatsApp: a Ghana RCT found an effect size of ~0.37 (≈ an extra year …
Kenya
EIDU pairs teacher training with an AI-adaptive app that personalises literacy/numeracy practice for Kenyan public pre-primary pupils. A cluster-RCT across …
India
An adaptive learning system rigorously evaluated by MIT's J-PAL: students gained 2–2.5× the control group's progress in maths and language …
United States of America
A Stanford AI co-pilot gives live, expert-style suggestions to human maths tutors mid-session. A randomised trial with 900 tutors and …
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