DeepMind measures AI learning effects in Sierra Leone school trial

Google DeepMind says a randomized controlled trial across 12 schools in Sierra Leone and 1,763 junior secondary students found that guided AI learning lifted mathematics scores by 0.258 standard deviations. The result reinforces a broader shift in edtech: AI tools will increasingly be judged by learning outcomes, not by novelty or usage alone.

Guidances Staff · Updated June 14, 2026

A guided AI learning trial in a classroom highlights the shift from usage metrics to measurable learning outcomes. · June 14, 2026

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