Reports on a study of possible differences in interaction patterns between a sixth-grade teacher and different groups of students. Results showed consistency in the interactions studied, but important differences occurred in the quality and quantity with students perceived as "best" and "weakest" and boys and girls in…

Analyzes the results of a Mexican/British project that used the sociocultural approach to investigate ways in which mathematics is used in the practice of school science and the role of spreadsheets as a mathematical modeling tool. Suggests the possibility of enhancing students' capability to shift between a wider range of representations using…

This paper provides a log and discussion of experiments conducted by a five-and-one-half-year-old child under the direction of the author. (SD)

Based on the premise that body experiences interfere inconveniently with scientific ideas in mechanics instruction. Suggests that learning processes start with body experiences and, with guidance, transform them into something scientific. Discusses this process for the static and kinetic aspects of force and for measurement. (MDH)