We conducted a study with introductory and upper-division physics students in a Mexican university to learn how students independently recognize the electric field's main characteristics in the electric field lines diagram and as a source or target representation in conversion processes. We used the theory of registers of semiotic representations…

A majority of the school districts that desegregate use magnet schools as part of their effort. Magnet schools offer enriched academic or vocational programs to attract committed students whose neighborhood schools do not offer the coursework and activities they seek. This paper is concerned with science magnet schools. This study was designed to…

Examines the use of clinical interviews as a complement to more typical achievement tests. The research focused on the learning outcomes resulting from second grade students' viewing of television program on magnets. Results indicated that clinical interviews provided evidence of effective instruction when achievement tests did not. (ML)