| The role and function of proof on mathematics D Villiers Pythagoras 24, 17-24, 1990 | 768 | 1990 |
| Rethinking proof: with the Geometer's sketchpad MD De Villiers (No Title), 1999 | 457 | 1999 |
| The role and function of a hierarchical classification of quadrilaterals M De Villiers For the learning of mathematics 14 (1), 11-18, 1994 | 394 | 1994 |
| To teach definitions in geometry or teach to define? M De Villiers PME conference 2 (8), 1998 | 321 | 1998 |
| Recent research on geometry education: An ICME-13 survey team report N Sinclair, MG Bartolini Bussi, M de Villiers, K Jones, U Kortenkamp, ... ZDM 48, 691-719, 2016 | 253 | 2016 |
| Proof and proving in mathematics education: The 19th ICMI study G Hanna, M De Villiers Springer Nature, 2012 | 206 | 2012 |
| An alternative approach to proof in dynamic geometry M De Villiers Designing learning environments for developing understanding of geometry and …, 2012 | 200 | 2012 |
| Using dynamic geometry to expand mathematics teachers’ understanding of proof M De Villiers International Journal of Mathematical Education in Science and Technology 35 …, 2004 | 191 | 2004 |
| ICMI Study 19: Proof and proving in mathematics education G Hanna, M de Villiers, International Program Committee ZDM 40, 329-336, 2008 | 173 | 2008 |
| El papel y la función de la demostración en matemáticas M De Villiers Epsilon: Revista de la Sociedad Andaluza de Educación Matemática" Thales", 15-30, 1993 | 171 | 1993 |
| The future of secondary school geometry M De Villiers Slightly adapted version of Plenary presented at the SOSI Geometry Imperfect …, 1996 | 120 | 1996 |
| The role and function of proof with Sketchpad M De Villiers Rethinking proof with Sketchpad, 3-10, 1999 | 99 | 1999 |
| The role of proof in investigative, computer-based geometry: Some personal reflections M De Villiers MAA NOTES, 15-24, 1997 | 82 | 1997 |
| Algumas reflexões sobre a Teoria de Van Hiele. M De Villiers Educação Matemática Pesquisa Revista do Programa de Estudos Pós-Graduados em …, 2010 | 78 | 2010 |
| Pupils' needs for conviction and explanation within the context of geometry MD De Villiers PME XV proceeding, 1991, 1991 | 78 | 1991 |
| The role and function of quasi‐empirical methods in mathematics M de Villiers Canadian Journal of Math, Science & Technology Education 4 (3), 397-418, 2004 | 77 | 2004 |
| Some reflections on the van Hiele theory M De Villiers Invited plenary from 4th Congress of teachers of mathematics, 2010 | 71 | 2010 |
| Research evidence on hierarchical thinking, teaching strategies and the Van Hiele theory: Some critical comments MD De Villiers Research Unit for Mathematics Education, University of Stellenbosch, 1987 | 67 | 1987 |
| An illustration of the explanatory and discovery functions of proof M De Villiers Pythagoras 33 (3), 1-8, 2012 | 66 | 2012 |
| Aspects of proof in mathematics education G Hanna, M de Villiers Proof and proving in mathematics education: The 19th ICMI Study, 1-10, 2012 | 56 | 2012 |
Gila HannaUniversity of TorontoVerified email at utoronto.ca