Em. Gray et Do. Tall, DUALITY, AMBIGUITY, AND FLEXIBILITY - A PROCEPTUAL VIEW OF SIMPLE ARITHMETIC, Journal for research in mathematics education, 25(2), 1994, pp. 116-140
In this paper we consider the duality between process and concept in m
athematics, in particular, using the same symbolism to represent both
a process (such as the addition of two numbers 3 + 2) and the product
of that process (the sum 3 + 2). The ambiguity of notation allows the
successful thinker the flexibility in thought to move between the proc
ess to carry out a mathematical task and the concept to be mentally ma
nipulated as part of a wider mental schema. Symbolism that inherently
represents the amalgam of process/concept ambiguity we call a ''procep
t.'' We hypothesize that the successful mathematical thinker uses a me
ntal structure that is manifest in the ability to think proceptually.
We give empirical evidence from simple arithmetic to support the hypot
hesis that there is a qualitatively different kind of mathematical tho
ught displayed by the more able thinker compared to that of the less a
ble one. The less able are doing a more difficult form of mathematics,
which eventually causes a divergence in performance between them and
their more successful peers.