Vol. 5 Num. 3 (1985) Helen Mansfield Points, lines, and their representations2 Uri Leron Heuristic presentations: the role of structuring7 Margaret Stempien , Raffaella Borasi Students' writing in mathematics: some ideas and experiences14 Gilah C. Leder Measurement of attitude to mathematics18 Paul Ernest Communication: Comments on journals and problems22 Colin Davis Communication: A teacher's dilemma24 Colette Laborde Quelques problèmes d'enseignement de la géométrie dans la scolarité obligatoire27 Rick Blake , Charles Verhille The story of 035