Vol. 21 Num. 3 (2001) Jenny Houssart Rival classroom discourses and inquiry mathematics: 'the whisperers'2 Karen D. King Conceptually-oriented mathematics teacher development: improvisation as a metaphor9 Irene Percival An artefactual approach to ancient arithmetic16 Greisy Winicki Landman History of Mathematics Education - as I read it22 Francis Lopez-Real , Allen Leung Reflections on a TIMSS geometry lesson25 Elisabet Doverborg , Ingrid Pramling Samuelsson Children's experience of shape in space32 Nathalie Sinclair , Anne Watson Wonder, the rainbow and the aesthetics of rare experiences39 Kazuhiko Nunokawa Surprises in mathematics lessons43