What is mathematics, and what aspects of it should be taught in schools? How and to whom should it be taught, and how should its understanding be assessed? These questions continue to drive curriculum development, school organization, teaching methods, and research agendas. No one today doubts that mathematics should be taught in our schools, but this was not always so. Mathematics Education Across Time and Place aims to help mathematics teachers, teacher educators, and anyone else interested in mathematics education appreciate the path this discipline has taken through the ages. To understand the historical and social context for schools and the place of mathematics within them, we meet a variety of mathematics educators from different times and places. Though fictional, their lives and social circumstances are based on historical documents and professional sources. They range from ancient Greece to modern Zimbabwe; from Persia to British Columbia; from Islamic Baghdad to revolutionary Paris; from Elizabethan England to twentieth-century New York; and from the rural one-room schools of North America to the modern comprehensive secondary school. By sharing the teachers’ lives, we come to understand how they developed their love for teaching mathematics, and how their work fit into the larger social context of their time.