A detailed review by James T. Kloppenberg, constructively criticizing the author's (Jon Butler) thesis that ties between colonial religion and politics are exaggerated.

Read a chapter from a book by Edward Winslow Martin, published in 1873, which lays out what Credit Mobilier was and how being associated with the company and its stock became such a scandal to members of Congress in 1872.

Define what invasive species are and learn how they may affect the environment. Construct a twelve sided dice with examples of invasive species to help educate others about the topic.

[Free Registration/Login may be required to access all resource tools.] Students discover how standing waves form through constructive interference, and learn how to solve standing wave problems where either both ends are constrained or...