For more than 2 decades, Karin Hess has worked with the concept of depth of knowledge (DOK) and expanded applications of cognitive rigor across content areas and grade levels, proving that every student can experience deeper learning. This interactive book offers a self-guided journey beginning with the basics: what DOK is, what it is not, and…

This article is the first of a two-part review of research on children's and adults understanding of gravity and on how best to teach gravity concepts to students and teachers. This first article concerns free fall--how and why objects fall when they are dropped. The review begins with a brief historical sketch of how these ideas were developed in…

This is the second and final part of a review of educational research on children's ideas about gravity. The first part concerned students' understanding of how and why things fall. This article picks up the trail of research studies that address students' understanding of the more complex ideas of projectile motion and orbits and examines how the…

The collection of vignettes in this book provide science teachers with a multitude of source materials and useful alternatives for incorporation into their curricula and teaching. Teachers may select topics as brief issues for casual reflection or as a means for promoting deeper investigation and analysis. Most of the vignettes can be extended and…

This book is a collection of research papers and respected philosophical statements on how secondary school students learn science best. Taken together, these papers serve as the basis for the Project on Scope, Sequence, and Coordination of Secondary School Science (SS&C). This book explains where the learning ideas of the SS&C Content…