The study investigated the effect of problem-based learning (PBL) on students' achievement in chemistry. Learners' low achievement in Science in South Africa has been a concern to government, stakeholders, school principals and parents over the years as a result of poor teaching techniques, students' attitudes, lack of teaching and learning…

What impact can interactive engagement (IE) activities using clickers have on students' motivation and academic performance during lectures as compared to attending traditional types of lectures? This article positions the research on IE within the comprehensive model of educational effectiveness and Gagné's instructional events model. For the…

The incidence and prevalence of alternative conceptions in science have been reported by a number of researchers. This article reports findings of a study involving the development and implementation of two intervention programmes to address alternative conceptions related to interference and diffraction of waves among 133 first year university…

Compares differences in successive pretest/posttest scores for 46 undergraduate volunteers following the application of distinct teaching formats to each of 3 consecutive subsections of a human physiology course. Indicates scores increased favorably for audio-visual lecture and self-study tutorial formats but no significant increase for didactic…