This is the 13th annual listing of research on mathematics education. Annotated references are organized alphabetically by author within three categories: (1) research summaries; (2) journal-published reports; and (3) dissertation abstracts. An index is also provided to help locate references to designated mathematical topics. Topic areas include: achievement; algebra; arithmetic operations; attitudes/anxiety; calculators and computers; cognitive style; diagnosis and remediation; ethnic and social variables; geometry and measurement; learning; learning disabilities; mathematics materials; number and numeration; organizing for instruction; problem-solving; sequencing; sex differences; and test analysis. Accompanying the author's name in this index is a grade-level designation. In addition, each annotation listed in the three major categories also includes a grade-level (or age-level) designation. Annotations generally indicate one principal finding of a study, although most have additional findings. Therefore, the original report should be checked for other results as well as for limitations affecting the validity of the findings. Several studies in which mathematics education was not the primary focus are also included. Such studies are usually not annotated. (JN)