This volume attempts to bring together a collection of reports on the Geometric Supposer, a series of computer software environments which can be a tool for exploring particulars and generalizations in geometry. The book contains the following chapters: (1) "A Personal View of the Supposer: Reflections on Particularities and Generalities in…

The handbook, capsulizing much of the growing body of research and writing on conceptual approaches, is designed to provide assistance to elementary teachers in giving students a conceptual perspective for dealing with social studies content. The handbook is arranged in seven sections. After a brief discussion of the rationale for teaching…