🧠 Leaf Summer Courses 2026 — Online Programs for Ambitious Students Leaf offers Oxbridge/Ivy-style courses for high school students who want to explore important global problems and prepare for top universities. 📅 Program dates: July 12 – August 16, 2026 💻 Format: 100% online 👥 Age: 15–19 ⏳ Workload: ~5 hours per week 💸 Sliding-scale tuition (free if needed) — financial aid available. Students join a global community of motivated peers and also participate in Q&A sessions with experts. 📚 Courses available: • The Mathematics of Morality — using math and quantitative thinking to maximize positive impact • Biology for a Better Tomorrow — how biological research can improve the future of humanity • History to Shape History — learning from the past to influence the future • Dilemmas and Dangers in AI — exploring the risks and opportunities of advanced AI 📅 Early application deadline: April 1 🔗 Learn more / Apply: https://leaf.courses/