Presents an activity on the sum of the measures of the interior angles of a five-pointed star by using The Geometer's Sketchpad. (ASK)

Presents an activity from the track and field unit of the Science of Sporting Events program in which teachers and students experiment with four broad jump techniques in order to determine which method will allow them to jump the farthest. Enables students to use a variety of math and science skills including observing, predicting, measuring, and…

Contains 10 miscellaneous mathematics questions and their answers that teachers can use in their lessons. Topics include estimation, prime numbers, line equations, and investment strategies. (ASK)

Describes an activity whose objectives are to encode and decode messages using linear functions and their inverses; to use modular arithmetic, including use of the reciprocal for simple equation solving; to analyze patterns and make and test conjectures; to communicate procedures and algorithms; and to use problem-solving strategies. (ASK)

Describes a unit where children first master the basic concepts inherent in restaurant transactions, then organize and run a classroom restaurant. Discusses project accomplishments and extensions and ways to modify the model to fit the needs and strengths of children in any classroom. (JRH)

A study of interactions among Swedish intermediate-grade students as they solved a nonstandard mathematics task confronting the phenomenon of infinity shows that the children can reach a considerable understanding of the problem by contextualizing the problem in different ways. The collective orchestration of problem variations results in enhanced…

Analyzes a teaching experiment conducted within the context of teacher education designed to support preservice teachers' understandings of place value and multidigit addition and subtraction. Analyses of the teaching ex-periments document the learning of the preservice teachers and how that learning was supported by initial conjectures grounded…

Describes a simulation using dice-tossing students in a population cluster to model the growth of cancer cells. This growth is recorded in a scatterplot and compared to an exponential function graph. (KHR)

Describes the habits of mind that would be most desirable for students to develop. In high school for example, content-specific habits would include geometric habits of mind that support the mathematical approaches, and algebraic ways of thinking that complement the geometric approaches. (AIM)

Addresses the early stages of children's introduction to the use of variables in formal algebraic notation. Describes a teaching approach that aims to situate the use of formal notation in meaningful contexts. Presents a study of a teaching sequence based on children working with this approach using graphical feedback in problem solutions. (AIM)

Analyzes students' productions, taking affective and social factors into account. Uses the technique of virtual monologue to reproduce the student's voice in order to describe as vividly as possible what might be going on in the student's mind during such situations. (AIM)

This activity involves students investigating the mathematics of packaging and exploring various concepts in geometry, including area and the Pythagorean theorem. Mathematics comes out of the discussion of packaging cans into six-packs and focuses on the cost-effectiveness of the horizontal storage area used. Students learn how knowledge of…

Describes a graphing activity that promotes mathematical connections with social studies lessons. Students should be familiar with graphing on the Cartesian coordinate system to play this variation of the game Battleship on maps of various regions of the world. (AIM)

Presents five articles addressing numbers and math instruction for young children: "Math Talk with Young Children: One Parent's Experience" (Fred E. Gross); "How Children Build Their Understanding of Numbers" (David Elkind); "Early Math: It's More than Numbers" (Ann S. Epstein); "Assessing Mathematical Learning: Observing and Listening to…

Analyzes discussions with teachers (n=26) of Key Stage 2 classes (ages 7-11) during interviews on mathematical tasks based on use of pattern. Finds that pattern was used frequently, but that some teachers had a wider and more sophisticated view of pattern than others. Includes references and an appendix. (CMK)