Research has shown that wait-time (the amount of silence between teacher and student echances) is a part of an interdependent student-teacher interaction system and that the manipulation of this variable has measurable effects on teacher input variables, student outcome variables, and acquisition variables. Since the acquisition of extended…

This issue contains abstracts and critical comments for ten mathematics education journal articles, plus an editorial on teacher education needs by Thomas J. Cooney. Two articles focus on problem solving; the remainder concern instruction about and with computers, geometric perceptions, preservice teachers' conceptions of volume, attitudes toward…