This paper provides a detailed analysis of the inclusion of aspects of nature of science (NOS) in the "Next Generation Science Standards" (NGSS). In this new standards document, NOS elements in eight categories are discussed in Appendix H along with illustrative statements (called exemplars). Many, but not all, of these exemplars are…

In the wake of increasing evidence that students' positive attitudes towards science particularly in chemistry and physics change strikingly as they move up in school, this study explores student perception of intrinsic and extrinsic factors that make them feel cognitive load in learning physics, chemistry and biology resulting in difficulty to…

The complex topic of global climate change continues to be a challenging yet important topic among science educators and researchers. This mixed methods study adds to the growing research by investigating student conceptions of climate change from a system theory perspective (Von Bertalanffy, 1968) by asking the question, "How do differences…

The teaching of evolutionary theory has historically been problematic, often times marred with legal and moral battles. In recent years, state boards of education have prohibited or somehow compromised the role of evolutionary theory in school science. Consistent with the diversity of beliefs in contemporary society, preservice science teachers…