Causes of Wars – Comparisons and Contrasts: Students are provided with detailed information about the causes of three major wars in the form of a grid, broken down into key themes (political, economic, etc). Their task is to complete the grid by providing further examples of other wars that they have studied and try to make some overall observations. Specific instructions for how students should feed back to the rest of the class are provided in this PowerPoint Slide. A completed teacher version is also available.