Students' conceptions of student explanations as mediators of the relation of instructional stimuli to seatwork achievement was examined. Results indicated a positive relationship among cognitions about explaining, small group behavior, and seatwork achievement. Students' conceptions of a good explanation were positively related to achievement and…

This study investigated the stability over time of: (1) student behavior in small groups; and (2) the relationships among student and group characteristics, group interaction, and achievement. Measurements were taken for two three-week instructional units, three months apart, on 110 students in three average-ability junior high school mathematics…