AQA GCSE Paper 2 UK Section B - The Changing Economic World - The Development Gap. This booklet can be used in the lesson as a resource or as a revision booklet. Booklet includes: Match up key words The DTM (Demographic transition model) Strengths and Weaknesses of DTM What is the development gap Development indicators Skills section Causes of development gap Consequences of uneven development Strategies to reduce the development gap Exam practise