Several changes have occurred over the past century in the education system of Saudi Arabia. The changes have largely been associated with the fact that in the 21st century, information and communication technology is highly applied in the learning process, thereby leading to a major transformation of the process. The application of information…

Teachers' knowledge and application of model play an important role in students' development of modeling ability and scientific literacy. In this study, we investigated Chinese chemistry teachers' knowledge and application of models. Data were collected through test questionnaire and analyzed quantitatively and qualitatively. The result indicated…

Understanding frames of reference is critical in describing planetary motion and learning astronomy. Historically, the geocentric and heliocentric models were defended and advocated against each other. Today, there are still many people who do not understand the relationship between the two models. This topic is not adequately treated in astronomy…