Vol. 20 Num. 3 (2000) Chris Bissell , Chris Dillon Telling tales: models, stories and meanings3 Carl Winsløw Between Platonism and constructivism: is there a mathematics acquisition device?12 Nigel Price , Simon YouÉ The problems of diagnosis and remediation of dyscalculia23 Caroline Lajoie , Roberta Mura What's in a name? A learning difficulty in connection with cyclic groups29 Colette Laborde , William C. Higginson , Cynthia Nicol , Bill Barton , Alexander Karp The 9th International Congress on Mathematical Education, August 200034 Rina Zazkis Using code-switching as a tool for learning mathematical language38 Elena Nardi Zeros and ones in advanced mathematics: transcending the intimacy of number e44