This issue contains abstracts and critical comments for published reports of research in mathematics education. The reports are concerned with: (1) relationships between class size, teaching practices, and student achievement; (2) sex differences related to attitudes; (3) comprehension of mathematical relationships expressed in graphs; (4) effect of semantic structure on strategies for solving addition and subtraction word problems; (5) using computer-based analysis to improve subtraction skills; (6) cultural variations in family beliefs about children's performance in mathematics; (7) a case study of a highly skilled mental calculator; (8) learning of geometrical concepts through Logo; (9) parent attitudes and career interests in junior high school; (10) relationships between attitude and achievement for elementary grade mathematics and reading; (11) adapting mathematical problems to student interests; and (12) writing geometry proofs. Research references from "Current Index to Journals in Education" (CIJE) and "Resources in Education" (RIE) for April-June 1987 are also listed. (RH)