In this podcast series designed to support students studying the OCR A unit on migration to Britain c.1000-2010, Martin Spafford outlines the essentials that students should know and understand. Slightly differently to the OCR B unit on migration, the OCR A unit's focus is mainly upon similarity and difference and the siginificance of aspects of migration. You will need a strong chronological knowledge of what is happening when and why and the ability to be able to evaluate how significant these events/actions are. You also need to be able to draw contrasts and connections between different time periods.