This case study looks at an animal model in the study of Alzheimer's disease. Students will identify which components of the scientific method are used in the case. The lesson may be used in a variety of science courses,...

This article, created by B. Dudley of Keele University, describes how an environmental science class became involved in a study to confirm the hypothesis that weeds are distributed at random in well established lawns....

This is a tree species distribution atlas. It contains information for 80 species in the eastern half of the United States (east of the 100th meridian). The site contains distribution maps and tables for different...

This webpage offers a doctoral dissertation in which the author proposes a theoretical framework to analyze and describe students' mathematical thinking in physics. The author addresses two particular questions. What are...

In August 2001 the Secretaries of Agriculture and the Interior joined the Western Governors' Association, National Association of State Foresters, National Association of Counties, and the Intertribal Timber Council to...