*66%*:**The Influence of Student Understanding of Classical Physics When Learning Quantum Mechanics***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%*:**Using student-generated content to engage students in upper-division quantum mechanics***65%*:**Surveying Studentsâ€™ Understanding of Quantum Mechanics***64%*:**Testing the development of student conceptual and visualization understanding in quantum mechanics through the undergraduate career***64%*:**Student Difficulties in Understanding Probability in Quantum Mechanics***64%*:**Assessing and improving student understanding of quantum mechanics***64%*:**Surveying students' understanding of quantum mechanics in one spatial dimension***64%*:**Improving students' understanding of quantum mechanics via the Sternâ€“Gerlach experiment***64%*:**Student understanding of potential, wavefunctions and the Jacobian in hydrogen in graduate-level quantum mechanics***63%*:**Exploring Student Understanding of Energy through the Quantum Mechanics Conceptual Survey***61%*:**Student understanding of quantum mechanics***61%*:**Improving Students' Understanding of Quantum Mechanics***60%*:**Investigating the Influence of Visualization on Student Understanding of Quantum Superposition***59%*:**Improving students' understanding of quantum mechanics by using peer instruction tools***58%*:**Improving Students' Understanding of Quantum Mechanics***58%*:**Student understanding of quantum mechanics at the beginning of graduate instruction***57%*:**Student Understanding of Tunneling in Quantum Mechanics: Examining Interview and Survey Results for Clues to Student Reasoning**