Collaborators and visiting scholars
          
                                                  
                
                  Prof Mike Askew
                
                                  -Wits University, SA
                              
                                                              
                
                  Dr Patrick Barmby
                
                                  -No More Marking, UK
                              
                                                              
                
                  Prof Anjum Halai
                
                                  -Aga Khan University, Pakistan
                              
                                                              
                
                  Prof Jeremy Hodgen
                
                                  -Kings College London, UK
                              
                                                              
                
                  Prof Steve Lerman
                
                                  -London South Bank Universit, UK
                              
                                                              
                
                  Mr Bernard Murphy
                
                                  -Maths in Education and Industry (MEI), UK
                              
                                                              
                
                  Dr Erlina Ronda
                
                                  -University of the Philippines, Philippines
                              
                                                              
                
                  Prof Ulla Runesson
                
                                  -Jönköping University, Sweden
                              
                                                              
                
                  Prof Anna Sfard
                
                                  -University of Haifa, Israel
                              
                                                              
                
                  Prof Ravi Subramaniam
                
                                  -Homi Bhabha Centre for Science Education, TATA Institute of Fundamental Research, India
                              
                                                              
                
                  Prof Hamsa Venkat
                
                                  -SA Numeracy Chair, Wits University, SA