Describes the rationale for and the methods used in four case studies of mathematics teaching in California which are discussed in subsequent articles. The case studies were designed to elicit relationships between teachers' knowledge of mathematics and beliefs about the nature of mathematics teaching and learning and their mathematics…

The effectiveness of an experimental mathematics teaching program was investigated. Observational measures revealed that teachers implemented the treatment. Analyses of product data showed that students of treatment teachers outperformed those of controls. Thus, teachers and/or teaching methods exerted a significant difference on student progress…

Features articles about physical therapy and its history as related to geometry through measurement of body angles. Includes open-ended worksheets for mathematics activities that introduce students to angle measurement, data analysis, and mathematical tools. Activities include: (1) Making Your Own Goniometer; (2) Range of Motion; (3) Active versus…