The series of Concept Cartoon books and posters are already an established classroom tool and provide children with easy to understand yet challenging introductions to key science concepts. The authors, Stuart Naylor and Brenda Keogh, are teacher-trainers at Manchester Metropolitan University and have worked extensively in researching their effective use in primary science teaching. This unit introduces concept cartoons, describes the rationale behind them and invites you to watch two teachers making excellent use of them with lower and upper primary groups.