Recent efforts to reform science education have strongly emphasized the understanding of the nature of science (NOS) as important to achieving broader scientific literacy. Despite the realization that students' understanding of NOS is important, there is a gap between research and practice. In order to teach NOS effectively in pre-college or…

The adoption of active learning instructional practices in college science, technology, engineering, and mathematics (STEM) courses has been shown to result in improvements in student learning, contribute to increased retention rates, and reduce the achievement gap among different student populations. Descriptions of active learning strategies…

Chemical bonding is one of the key and basic concepts in chemistry. The learning of many of the concepts taught in chemistry, in both secondary schools as well as in the colleges, is dependent upon understanding fundamental ideas related to chemical bonding. Nevertheless, the concept is perceived by teachers, as well as by learners, as difficult,…