Project- and problem-based learning (PBL/PrBL) reflect the realities of the world outside the classroom. By challenging students to engage with mathematics in this way we are preparing them to be critical thinkers who can apply skills learned in the classroom to outside contexts. As we design such tasks and plan to facilitate them, there are key variables (as outlined in this article) to consider to ensure that students remain both challenged and supported throughout the experience. When a student feels challenged beyond reach, this experience can have an adverse effect, leaving the student to feel defeated rather than empowered. The teacher moves in a PBL/PrBL setting are crucial.