Catherine A. Buell is Associate Professor of Mathematics. She spends her time teaching and learning from her students at Fitchburg State University, USA, and the local prison, as well as exploring the role mathematics plays in a just society. She also enjoys time with friends, the dogs, and family. Bonnie Shulman is Professor Emerita in the Mathematics department at Bates College, Lewiston, USA. She now lives on a farm in Greene, USA, working with home-schooled youth aged 6–12 in mathematics and science.