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…

This article examines the extent to which classroom instruction conveyed challenging learning goals in writing through a range of teaching activities and how well the participating students understood those goals. We report an empirical study that examined the quality of writing instructional goals, how well they were conveyed to students through…

A general introduction to the concept of microteaching and its development is presented, and the generally accepted format and the skills practiced for microteaching are described. Aspects of microteaching commonly perceived as favorable and unfavorable are addressed, and a review of current research is provided and followed by a discussion of the…