Stephanus, Gervasius H. “Effective Teaching Practices from the Perspective of Kilpatrick, Swafford and Findells (2001) Model: A Video-Based Case Study Analysis of the Teaching of Geometry in Namibia”. The Namibia CPD Journal for Educators (February 23, 2018): 63–8. Accessed May 13, 2024. https://journals.unam.edu.na/index.php/NCPDJE/article/view/1271.