Abstract
The notion of a variable appears critical to the understanding of school algebra. Research studies are generally in agreement that this concept requires higher- order (i.e., formal) cognitive skills. feature associated with A the understanding of a variable involves the use of second-order relationships, that is, where the letters relationships. are themselves The purpose of this investigation was to explore this feature and to extend the findings identified earlier by Pegg and Coady (1993). The SOLO Taxonomy was used to interpret students' responses.
Carmel Coady & John Pegg
Students’ Use Of Second-Order Relationships In Algebra