Abstract
This paper reports on students’ ability to decode mathematical graphics. The findings were:
(a) some items showed an insignificant improvement over time; (b) success involves
identifying critical perceptual elements in the graphic and incorporating these elements into
a solution strategy; and (c) the optimal strategy capitalises on how information is encoded
in the graphic. Implications include a need for teachers to be proactive in supporting
students’ to develop their graphical knowledge and an awareness that knowledge varies
substantially across students.
Carmel M. Diezmann & Tom Lowrie