https://commons.ufh.ac.za/vital/access/manager/Index en-us 5 “As soon as the four sides are all equal, then the angles must be 90° each”: children's misconceptions in geometry https://commons.ufh.ac.za/vital/access/manager/Repository/vital:37934 Thu 09 May 2024 06:57:56 SAST ]]> The nature of geometry instruction and observed learning-outcomes opportunities in Nigerian and South African high schools: https://commons.ufh.ac.za/vital/access/manager/Repository/vital:37929 Thu 09 May 2024 06:57:36 SAST ]]>