Three modules on chemical equilibrium, developed as resource materials for a content-methodology course in chemistry for intending teachers and also for general chemistry courses at the senior secondary and tertiary levels, are described. The use of these modules in a methodology course showed a significant development of competence in the…

The purpose of this causal-comparative study was to compare reasoning level, American College Test (ACT) science, process skills, and physical science misconceptions of preservice elementary and secondary science teachers and to investigate gender differences. The stratified randomly drawn sample (n=68) consisted of preservice elementary and…