Demonstrates how to use graphing calculators to explore rational number approximations to irrational numbers. (Author/NB)

A hidden-words puzzle involves the names of 22 mathematicians. (SD)

Utilizes the notion of a students' proof schemes and outlines categories of proof schemes to evaluate the justifications given by students so that teachers can plan instruction to move them toward more sophisticated ways of reasoning. Contains 22 references. (ASK)

Explores how students interpret algebraic notation and what teachers can do to support appropriate interpretations. Presents two research-based strategies and concludes that in the face of reform and technological advances, finding a definition for symbol sense takes on added significance. Contains 22 references. (ASK)

Uses historical figures to examine variables influencing women's success in mathematics. The three characteristics stressed are supportive family background; early exposure to significant mathematics; and available female role models in mathematics. Discusses barriers to females' choice of mathematics as their careers and actions taken to increase…

Presents research findings related to students' intuitive ideas about the concepts of chance to inform teachers how students form their concepts of probability and statistics. Discusses adolescents' conceptions of uncertainty, judgmental heuristics in making estimates of event likelihood, the conjunction fallacy, the outcome approach, attempts to…