Abstract
The following is a report of aspects of a project that is exploring the implementation of mathematically challenging tasks and ways of supporting teachers to facilitate effective lessons. Teacher participants indicate that the three-part lesson structure proposed for implementation is valuable. However, they continue to describe the summary phase as complex. The data presented below suggest that repeated opportunities for students to voice their strategies in a cumulative approach may lead to a more purposeful whole-class discussion during the summary phase.
Nadia Walker