The phenomenographic "approach to learning" literature holds that students' approaches to learning can change depending on the learning context. This implies that, by modifying the learning context, teachers can change the way students approach learning, and this can ultimately lead to a change in learning outcomes. The study presented here examines one effort to modify a science, technology, engineering, and mathematics (STEM) learning context and the approaches to learning taken by students experiencing this environment. Using a qualitative, phenomenographic approach, we interviewed 45 students in a STEM peer-led workshop programme at a large US research university. Similar to previous approach-to-learning research, the study identified three approaches students took to learning in the peer-led programme, in which they focused on simply making it through the course, engaging more meaningfully with the material, and gaining better control over their own learning. (Contains 2 tables.)