As a self described lesson collector, author Charles Lovett enjoys gathering "interesting" lessons and teasing them apart to find out what makes them "tick", particularly the pedagogy. He often wonders what decisions the teacher made that generated such an interesting and successful learning environment. Here he describes a lesson based around a reasonably well known number puzzle: The Year Puzzle. When viewing the puzzle from various points of view such as content, connections, problem solving, group work, differentiation and creativity, it seem very rich. There is no particular context (other than a puzzle) and no supportive technology. However, it has succeeded in many classrooms and one of the main reasons for this success is the pedagogy-those strategies used by the teachers which can make such a difference to the effectiveness or otherwise.