Vol. 6 Num. 2 (1986) Paul Cobb Contexts, goals, beliefs, and learning mathematics2 Paulus Gerdes How to recognize hidden geometrical thinking: a contribution to the development of anthropological mathematics10 Alain Senteni Filling squares: variations on a theme13 Zvia Markovits , Bat-Sheva Eylon , Maxim Bruckheimer Functions today and yesterday18 Uri Leron , Rina Zazkis Computational recursion and mathematical induction25 Gila Hanna , André Ladouceur Les biais dans les traductions françaises des tests de la seconde enquête internationale sur l'enseignement des mathématiques29 Dick Tahta A letter and a reply39 Uri Leron A letter and a reply 240 John Mason Probes and fragments42 Rick Norwood Multiplidungeon47