The task was presented to the students in Lesson 3 after the topic of perimeters of
rectangles. This task was selected as the illustrative example for this report because it
contained many of the task features identified to promote creative thinking (Table 2) but
during task implementation creative mathematical thinking was not evidenced. After task
closure, two students (Leon and Pepe) displayed creative thinking in further exploration of
the task. As Leon, and Pepe were not the focus students, classroom dialogue was captured
in fragments by the video cameras and in the field notes. Leon’s interview (Lesson 12)
supplemented this data.