The Co-Emergence of Machine Techniques, Paper-and-Pencil Techniques, and Theoretical Reflection: A Study of Cas use in Secondary School Algebra. - Carolyn Kieran; Paul Drijvers (Int. J. Comput. Math. Learn., 2006)

Constructing Knowledge Via a Peer Interaction in a CAS Environment with Tasks Designed from a Task-Technique-Theory Perspective. - Fernando Hitt; Carolyn Kieran (Int. J. Comput. Math. Learn., 2009)