In this article, the authors discuss the use by teachers of "Type 2 tasks" within the Task Types in Mathematics Learning (TTML) Project, i.e., those in which the mathematics is situated within a contextualised practical problem. It is argued that these kinds of tasks have great potential for challenging and engaging students, and showing how mathematics can help everyone to make sense of the world. The authors also discuss a major challenge for mathematics teachers generally, but particularly for those who take a problem solving approach to their teaching. The challenge is developing appropriate techniques and strategies needed in "pulling the lesson together." The authors hope that this discussion provides some food for thought in maximising the learning which emerges from worthwhile tasks. (Contains 6 figures.)