*50%*:**Student Understanding of Cross Product Direction and Use of Right-Hand Rules: An Exploration of Representation and Context-Dependence***47%*:**Assessing students' ability to solve introductory physics problems using integrals in symbolic and graphical representations***44%*:**Nesting in graphical representations in physics***41%*:**Changes in studentsâ€™ problem-solving strategies in a course that includes context-rich, multifaceted problems***41%*:**Representations of partial derivatives in thermodynamics***39%*:**Student difficulties with quantum states while translating state vectors in Dirac notation to wave functions in position and momentum representations***38%*:**Student difficulties in translating between mathematical and graphical representations in introductory physics***38%*:**Multiple Representations and Epistemic Games in Introductory Physics Exam Solutions***37%*:**Student Interpretation of the Signs of Definite Integrals Using Graphical Representations***37%*:**Teaching integration with layers and representations: A case study***37%*:**Student Epistemology About Mathematical Integration In A Physics Context: A Case Study***37%*:**Context of authority may affect studentsâ€™ evaluations of measurement***36%*:**The Use of Multiple Representations and Visualizations in Student Learning of Introductory Physics: An Example from Work and Energy***36%*:**Student Difficulties with Graphical Representations of Negative Values of Velocity***36%*:**Representation use and strategy choice in physics problem solving***36%*:**Representing energy. II. Energy tracking representations***36%*:**Algebra-Based Students and Vector Representations: Arrow vs. ijk***36%*:**Network Analysis of Students' Representation Use in Problem Solving***35%*:**Dynamics of studentsâ€™ ontological reasoning across contexts in modern physics**