Challenges in the Human Environment Changing Economic World - Development Gap - Causes of Uneven Development This lesson is suitable for Key Stage 4 AQA Geography GCSE geography students. The lesson is suitable for a single 50 minutes - 1 hour lesson. Students will learn about: Some causes of uneven development Non treatable diseases Landlocked countries Conflict Colonialism Raw material prices This lesson includes Starter Embedded videos Differentiation for different abilities Worksheet and resources for printing