This paper provides students with many interesting observations regarding the nature of magic squares, magic rectangles, and quasi-magic squares and provides tools for teachers to group students into ability-balanced cooperative learning groups.

In the project described in this article, students work together to model real-life phenomena. They also think about the modeling process as they develop rubrics for evaluating their peers' work.

Discusses cooperative learning and describes a method of implementing a cooperative-learning setting called Exchange of Knowledge. Contains 28 references. (ASK)

Shares students' experiences with working geometrical proofs in cooperative groups. Presents an example of week-long group take-home test. (ASK)

Introduces a technique for developing tasks suitable for group investigation where students work from sets of numerical examples toward making generalizations. (ASK)