This article is grounded in the work of the Mathematics Case Methods P
roject that began as a pilot study in 1987. The professional developme
nt process designed by this project uses teacher-authored cases (narra
tives about actual classroom experiences) as a stimulus for discussing
mathematical, pedagogical and philosophical concepts and issues. The
purpose of this article is to illustrate how specific aspects of the c
ases and case discussion process contribute to a climate that is condu
cive for motivating increasingly informed and strategic inquiry. The d
iscussion focuses on four pivotal areas: (1) development of one's own
understanding of mathematics; (2) use of the student perspective as a
source of feedback; (3) a recast of the familiar as strange and the si
mple as complex; and (4) critical examination of alternative views and
ideas. (C) 1998 Elsevier Science Ltd. AU rights reserved.