*82%*:**The Influence of Student Understanding of Classical Physics When Learning Quantum Mechanics***82%*:**Student Difficulties in Understanding Probability in Quantum Mechanics***77%*:**Student difficulties with determining expectation values in quantum mechanics***76%*:**On the Study of Student Use of Meta-Resources in Learning Quantum Mechanics***76%*:**Student Difficulties with Quantum Mechanics Formalism***76%*:**Deeper look at student learning of quantum mechanics: The case of tunneling***76%*:**Development and validation of a sequence of clicker questions for helping students learn addition of angular momentum in quantum mechanics***76%*:**Using student-generated content to engage students in upper-division quantum mechanics***74%*:**Investigating Student Difficulties with Time dependence of Expectation Values in Quantum Mechanics***70%*:**Conceptual and Mathematical Barriers to Students Learning Quantum Mechanics***69%*:**Analogous Patterns of Student Reasoning Difficulties in Introductory Physics and Upper- Level Quantum Mechanics***68%*:**Student Difficulties with Energy in Quantum Mechanics***68%*:**Helping Students Learn Quantum Mechanics for Quantum Computing***66%*:**Assessing and improving student understanding of quantum mechanics***66%*:**Students' Difficulties with Quantum Measurement***66%*:**Improving studentsâ€™ understanding of quantum measurement. I. Investigation of difficulties***66%*:**Improving student understanding of addition of angular momentum in quantum mechanics***66%*:**Investigating student understanding of basic quantum mechanics in the context of time-dependent perturbation theory***66%*:**Student difficulties with representations of quantum operators corresponding to observables**