*51%*:**Student Understanding of Density: A Cross-age Investigation***43%*:**A Cognitive Framework for Analyzing and Describing Introductory Students' Use and Understanding of Mathematics in Physics***42%*:**Student understanding of the ideal gas law, Part II: A microscopic perspective***41%*:**Student understanding of the ideal gas law, Part I: A macroscopic perspective***39%*:**Scaffolding students’ understanding of force in pulley systems***39%*:**Exploring Students' Conceptions of Density: Assessing Nonmajors' Understanding of Physics***39%*:**Student Interactions Leading to Learning and Transfer: A Participationist Perspective***38%*:**Understanding the graduate school selection process from students’ perspectives***37%*:**Upper-Level Physics Students’ Conceptions Of Understanding***37%*:**Effects of Training Examples on Student Understanding of Force and Motion***36%*:**Students’ use of resources in understanding solar cells***35%*:**Students' Cognitive Conflict and Conceptual Change in a Physics by Inquiry Class***35%*:**"Surprisingly, there is an actual physical application…" Student understanding in Math Methods***34%*:**Student Perspectives in Quantum Physics***34%*:**Examining Student Responses for Meaningful Understanding in the Context of Wavefront Aberrometry***34%*:**Students’ understanding of continuous charge distributions***34%*:**Tracking the referent system to understand students' math modeling processes***34%*:**The effect of similar surface features on students’ understanding of the interaction of charges with electric and magnetic fields***34%*:**Identifying student resources for understanding kinematics**