Effects of group and individualized mathematics instruction were investigated in high and average ability elementary students, noting the impact of ability grouping on achievement. Students instructed in pairs scored higher on posttests than those working alone. Ability grouping influenced the nature of intragroup interaction. Generating and…

The effects of persistence on students' ability to interact and learn in cooperative learning groups was studied, and the effect of collaboration on students' attitudes toward their partners was assessed. Participants were 138 sixth graders in a midwestern public school. A computer-based lesson and posttest dealt with the advertising concepts of…