This paper describes a study of whether and how collaborative learning at the computer fosters conceptual change. A suite of computer simulation programs developed to confront students' alternative conceptions in mechanics was integrated into a grade 10 science class in a high school in Melbourne, Australia. A Conceptual Test was administered as a…

Describes the interactions of high school girls and boys during coeducational science lessons. Analyses of the audiovideo recordings of 144 lessons taught by 12 male teachers indicate that girls were more likely to initiate classroom discourse. Findings did not support the hypothesis that gender disparity in science achievement in favor of boys…

Reports on a study of the interactions of students in Australian high schools and was designed to focus on "target students" who monopolized whole class interactions. Students who were asked by teachers to be target students tended to have higher formal reasoning ability and achievement levels than the other students. (TW)