Plate tectonics is the organizing paradigm of geosciences, but it is also conceptually complex, and students often struggle with developing a system level understanding of the earth. This article reports on research designed to create a characterization of the different levels of sophistication around plate tectonics in the form of a learning…

This study describes the process of defining a hypothetical learning progression (LP) for astronomy around the big idea of "Solar System formation." At the most sophisticated level, students can explain how the formation process led to the current Solar System by considering how the planets formed from the collapse of a rotating cloud of…

In this technological age, digital devices are conspicuous examples of extraordinary complexity. When a user clicks on computer icons or presses calculator buttons, these devices channel electricity through a complex system of decision-making circuits. Yet, in spite of this remarkable complexity, the hearts of these devices are components that…

Although the number of women majoring in engineering and engineering technology has increased in the last few decades, percentages lag behind those in other STEM disciplines. Young women often have misperceptions about the nature of engineering, and that leads to lack of interest. Engineering is often seen as men's work. They do not understand how…

This First Look presents findings from the base-year survey of the newly launched High School Longitudinal Study of 2009 (HSLS:09), the first round of a study that will follow a ninth-grade cohort through high school and into their postsecondary years. HSLS:09 is the fifth in a series of National Center for Education Statistics (NCES) high school…

The author of this article was surprised to read in the December 21, 2005, Ann Arbor News that "The Ann Arbor-based Thomas More Law Center, which represented the Dover [Pennsylvania] School District in its federal case for the teaching of intelligent design, has threatened to sue Gull Lake [Michigan] Community Schools over its policy that…

Physics First has gained momentum across the country. Providing a radically different paradigm to teaching science at the high school level, the Physics First movement inverts the traditional science sequence by teaching physics to ninth grade students. One of the benefits of this change, supporters claim, is that it provides a foundation to teach…