Beth Lindsey Department of Physics Penn State Greater Allegheny Title: Two avenues for improving student learning: conceptual understanding of potential energy and students' metacognitive calibration Abstract: Physics Education Research presents many productive approaches for improving student learning in physics. Research and curriculum development targeting student conceptual understanding have an important history. Recently, investigations into students' metacognitive skills have become more prominent as well. In this talk, I will describe two investigations currently in progress at Penn State Greater Allegheny. The first deals with student understanding of potential energy in the context of universal gravitation and electrostatics. Potential energy is a conceptually rich topic presenting many difficulties for students. I will describe the ways in which the research on student understanding has informed the development of curriculum and discuss the connections between student understanding of potential energy in mechanics and their subsequent performance in electricity and magnetism. I will present data on student understanding of potential energy from written questions and from one-on-one student interviews. A second area of active research is in students' metacognitive calibration. We are measuring the extent to which the course content students believe they know matches their actual exam performance. I will present evidence suggesting that calibration levels differ depending on question type. Both of these investigations have as their ultimate goal the improvement of student learning of introductory physics.