Bright key facts / Demonstrated
A teacher and an AI tutor after school.
A World Bank randomized trial studied a six-week, teacher-supported after-school English program in Edo State, Nigeria, where first-year senior secondary students used Microsoft Copilot powered by GPT-4.
- AI’s role
- Students used a generative-AI tool for curriculum-aligned English grammar and writing work after a teacher introduced the lesson and guided the sessions.
- Documented result
- The randomized evaluation reported a 0.31 standard-deviation improvement on its assessment covering English topics, AI knowledge, and digital skills after the six-week intervention.
- Important limitation
- The intervention was short and teacher-supported, so it does not establish effects of unsupervised chatbot use.