Abstract
In spite of considerable research algebra remains a difficult subject for many students.
Classroom teaching approaches still often rely on presentation of one or two procedures based
in a single representation for solving a given problem type, often the symbolic algebra
domain. The aim of this study was to investigate the value of using a multiplerepresentational
environment in which students interact conceptually with graphic calculators
(GCs) while solving quadratic equations. While students gained overall from using the GCs,
it has been difficult to show specific representational benefits. However, the study has
enabled us to describe and exemplify more clearly the nature of some representational
interactions.
Rosheen Gray & Mike Thomas
Quadratic Equation Representations and Graphic Calculators: Procedural and Conceptual Interactions