Reform efforts in K-12 science education have been gaining pace ever since the introduction of the "Next Generation Science Standards" (NGSS). The new vision calls for reconsidering teacher preparation programs to prepare future teachers who are confident and competent in delivering NGSS-based instruction. This study investigated the…

Background: Technological pedagogical content knowledge (TPACK) is critical for effective teaching with technology. However, generally science teacher education programs do not help pre-service teachers develop TPACK. Purpose: The purpose of this study was to assess pre-service science teachers' TPACK over a semester-long Science Methods. Sample:…

This longitudinal investigation assessed the development and changes in preservice science teachers' conceptions of subject matter and pedagogy as they proceeded through their secondary science methods course, practicum, microteaching, and student teaching. Twelve preservice science teachers were asked, on four occasions each several weeks apart,…