RUME 27
2025
Alexandria, Virginia
Student Understanding of Solids of Revolution: Refining a Previous Model
Page: 46
In this study, we consider students’ performance on tasks involving solids of revolution to refine a recently introduced, research-based model. An activity was designed with tasks to help students do the constructions proposed in the model. After implementing the activity in the classroom, we suggest additions to the model using data from the written responses of 22 university calculus students’ quiz and exam tasks. The results provide information about the challenges that students face when dealing with solids of revolution and allow us to refine the model to add more detail that might be used to help students overcome observed challenges. We discuss some limitations of the study and share teaching implications.