This 60-minute GCSE History Lesson will teach students how William Harvey’s theory about the circulation of the blood was different from the ideas of Galen, and will challenge them analyse why there was opposition to Harvey’s theory. There is a range of activities including a min-research task on Harvey, a FACTOR match-up comparing the contributions of Vesalius and Harvey; 'You're the Examiner' gets students marking a segment of an exemplar GCSE answers. This also provides a good opportunity for a student write-up.