M.-J. Perrin-Glorian 1 STUDYING GEOMETRIC FIGURES AT PRIMARY SCHOOL FROM SURFACES TO POINTS

On the one hand, difficulties in geometry in relation with figures are well known and yet studied from different theoretical perspectives. On the other hand, at primary school in France, geometry is generally less considered than numbers. The purpose of this research is to develop some teaching situations usable by any teacher and focussing on one aim: to learn to analyse figures, that is to say to see some lines, points, properties that do not appear at first glance but are important to construct or reproduce the figure. We identify some didactical variables of these situations and put them in relation with students ' difficulties. I. General frame, questions and methodology Our research raised from several observed facts and one fundamental hypothesis about teaching geometry at an elementary level (primary school and beginning of secondary school). 1. Some observations and reflections about teaching geometry in French primary school