Foundations of Geometry and Measurement for TeachersKurt Killion, Gay Ragan, Adam Harbaugh, Joann Barnett · First published 2019Open the Tome
Foundations of Number and Operations for TeachersKurt Killion, Joann Barnett, Gay Ragan, Adam Harbaugh, Patrick Sullivan · First published 2019Open the Tome
Learner-Centered InstructionJeffrey H. D. Cornelius-White, Adam P. Harbaugh · First published 2010 · Latest edition 2014Open the Tome
