Google expands Guided Learning to classrooms and pilots opt‑in K‑12 AI access

A preregistered randomized trial in Sierra Leone with 1,763 students showed an intent‑to‑treat mathematics effect of 0.258 standard deviations, roughly moving a median student from the 50th to the 60th percentile, and 69% of participants met the usage threshold. A separate 10‑week UK trial with 1,179 students reported that expert tutors approved 94.7% of 94,385 AI‑drafted messages and that supervised Gemini‑powered tutoring matched human tutoring on several measures, though broader standardized test gains were similar to standard remediation. The new K‑12 settings require school‑admin approval to activate Gemini, Gemini Notebook, Gemini in Classroom and Google Search for student accounts, and Google says student data will not be sold, used for advertising, or used to train generative models.