Ann Kajander is an experienced classroom teacher who is currently an Associate Professor in the Faculty of Education at Lakehead University. She is the author of two previous books of creative mathematical activities for children. Her research interests include mathematics education, pre-service education, teacher mathematics knowledge, the development of mathematics for teaching, and teacher beliefs.Tom Boland is currently a Special Education Facilitator for Lakehead Public Schools, where he has taught grades 3 to 8. He has also been a professional learning consultant in mathematics for school boards across Canada, a provincial math coach for the Ontario Ministry of Education, and an instructor in the Faculty of Education at Lakehead University.