Abstract
Understanding symbolic notation is usually considered crucial to the study of mathematics. One significant
aspect that has emerged from research into this understanding involves the meanings students give to
pronumerals (see for example, Collis (1975), Pegg and Redden (1990). Kuchemann (1981), in particular,
has identified six different interpretations for the meaning attributed to letters by junior secondary students.
These interpretations have been grouped into four levels representing a hierarchy of understanding.
The purpose of this study was to explore students' responses to three of the more demanding
Kuchemann test items which were identified after an initial sample of 278 students were given the entire set
of test items. Twenty one students were then interviewed and the reasons for their responses to these
questions were analysed. Students' responses and associated reasons could be divided into two distinct
categories, depending upon the mental processes involved in answering these questions. The distinguishing
factor was found to be inability to take into account the range of possibilities and limitations associated
with relationships involving letters.
CARMEL COADY
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