This issue of the journal contains abstracts and critical comments for 13 published reports of research in mathematics education. Topics include: (1) effects of mathematics anxiety on preservice elementary teachers; (2) visualizing rectangular solids; (3) computer simulations and abstract thinking; (4) the association of foldout shapes with polyhedra by third graders; (5) written and oral mathematics; (6) spacial representations in gifted children; (7) selection of mathematically talented students; (8) sex and ethnic group differences in mathematics achievement; (9) students' distortions of theorems; (10) an empirical classification model for errors in high school mathematics; (11) cooperative versus individualistic classrooms; (12) information processing by intellectually gifted pupils; and (13) feature frequency and the use of negative instances in a geometric task. Research references from the "Current Index to Journals in Education" (CIJE) and "Resources in Education" (RIE) for July through September 1986 are also listed. (TW)