*40%*:**Sense-making with Inscriptions in Quantum Mechanics***38%*:**How substance-based ontologies for gravity can be productive: A case study***37%*:**Arrows as anchors: Conceptual blending and student use of electric field vector arrows***37%*:**Investigating the Proposed Affordances and Limitations of the Substance Metaphor for Energy***37%*:**The use of ACER to develop and analyze student responses to expectation value problems***36%*:**Representation issues: Using mathematics in upper-division physics***36%*:**Nesting in graphical representations in physics***35%*:**Just Math: A New Epistemic Frame***33%*:**Student use of a material anchor for quantum wave functions***32%*:**A good diagram is valuable despite the choice of a mathematical approach to problem solving***32%*:**Investigating the Influence of Visualization on Student Understanding of Quantum Superposition***32%*:**Student Interpretations of Partial Derivatives***31%*:**Changes in studentsâ€™ problem-solving strategies in a course that includes context-rich, multifaceted problems***31%*:**Students' dynamic geometric reasoning about quantum spin-1/2 states***31%*:**Student conceptual resources for understanding mechanical wave propagation***30%*:**The Use of Multiple Representations and Visualizations in Student Learning of Introductory Physics: An Example from Work and Energy***30%*:**Using Analogies to Learn Introductory Physics***30%*:**Representations for a spins-first approach to quantum mechanics***30%*:**Epistemic complexity and the journeyman-expert transition**