Much effort over many years has been devoted to the reform of the teaching of physics. This has led to many new and imaginative approaches in the content and delivery of material. Great strides have been made in the delivery, and the content has been continually supplemented. However, attempts to modernize the basic structure of the presentation…

This article explores heterogeneity as fundamental to learning. Inspired by Bakhtin's notion of heteroglossia, a design team consisting of an experienced classroom teacher and 2 researchers investigated how a class of 3rd and 4th graders came to understand disciplinary points of view on heat, heat transfer, and the particulate nature of matter.…

The federal "No Child Left Behind Act of 2001" (NCLB) legislation required school districts to ensure that all teachers of core academic subjects met the requirements to be designated highly qualified by July 1, 2006. However, because no Maryland counties were able to comply with the 100 percent highly qualified designation by July 1,…

This paper focuses on the influence of high school science class size on students' achievement in introductory college science courses and on the variation of teacher practice across class size. Surveys collected information about high school science class experiences from 2754 biology, 3521 chemistry, and 1903 physics students across 36 public…

American science teachers in elementary and middle school face a dilemma as they prepare students for high school physics and advanced placement classes. The dilemma lies in ensuring that these students are equipped with the high-level science content they need to thrive in such classes. Aside from life sciences and chemistry sciences, how are our…