Reviews research on the appropriateness of computer use with young children. Discusses the effects computer use on children's lives, interaction, social and emotional development, learning and thinking in mathematics, and the implications for teachers. (KHR)

Describes young children's thinking about geometric shapes and discusses implications for teaching and learning. (KHR)

Discusses misconceptions about constructivism by identifying related myths such as students should always be actively and reflectively constructing, manipulatives make learners active, and cooperative learning is constructivist. One central goal of constructivism should be that students become autonomous and self-motivated in their learning.…

Investigates uses of interactive geometry software to enhance students' understanding and reasoning about two-dimensional shapes. Describes basic principles that underlie high-quality geometry instruction. Presents examples that illustrate how appropriate use of dynamic software can enhance students' geometric reasoning. (KHR)