On possible uses of traditional angolan sand drawings in the mathematics classroom Paulus Gerdes OriginalPaper Pages: 3 - 22
De l'espace du dessin a celui de l'objet. Une activité de mises en correspondances entre des dessins en perspective cavalière et des objects réels Rene Baldy OriginalPaper Pages: 43 - 57
“Knowing” vs “seeing”. problems of the plane representation of space geometry figures Bernard Parzysz OriginalPaper Pages: 79 - 92
Current status of secondary school mathematics curriculum development in China Shudao XuBiao Huang OriginalPaper Pages: 93 - 104