This article presents the authors' critique of lessons proposed by the Partnership for 21st Century Skills (P21). The authors initiate a discussion about content that they hope will play out in schoolhouses and statehouses across the country. They take on a different task: they present a handful of lesson ideas from P21 that could enhance studies…

This collection of 13 articles contains the reflections of experienced course developers on a particular course that illustrates the process of constructing flagship distance education programs. "Educational Developers in Action--A Series of Tales from the Mud" (Michael Parer) is an introduction that discusses the technology of distance…

The concept of physical and chemical change is far from being the clearest and most self-explanatory concept in the world. If a number of chemists are asked to define physical and chemical change, there may well appear to be a fair degree of uniformity in their answers, until a few examples are suggested. When chemists are asked to place a variety…