This resource covers key concepts from Graph Theory, including Chinese Postman Problem and Traveling Salesman Problem, aligned with IB Math: Applications and Interpretation HL (AHL3.14–3.16). It includes: Example questions from the Oxford and Haese textbooks Scaffolded investigations to promote student inquiry A dedicated TOK activity linking mathematics to real-world thinking Reflection and inquiry prompts after each section to deepen understanding Perfect for in-class instruction, designed t