*49%*:**Spin First vs. Position First instructional approaches to teaching introductory quantum mechanics***46%*:**NARST 1999: Research on Teaching and Learning Quantum Mechanics***44%*:**Faculty Disagreement about the Teaching of Quantum Mechanics***44%*:**Validation and administration of a conceptual survey on the formalism and postulates of quantum mechanics***43%*:**Exploring Student Understanding of Energy through the Quantum Mechanics Conceptual Survey***42%*:**An Investigation on the Impact of Implementing Visual Quantum Mechanics on Student Learning and Student Instructor Beliefs***42%*:**Surveying Students’ Understanding of Quantum Mechanics***42%*:**Surveying graduate students' attitudes and approaches to problem solving***42%*:**Quantum Mechanics Survey (QMS)***41%*:**Student Understanding of Tunneling in Quantum Mechanics: Examining Interview and Survey Results for Clues to Student Reasoning***41%*:**Surveying students' understanding of quantum mechanics in one spatial dimension***40%*:**Physics instructors’ views about supporting learner variation: Modifying the Inclusive Teaching Strategies Inventory***39%*:**Developing and Researching PhET simulations for Teaching Quantum Mechanics***38%*:**The Teaching of Quantum Mechanics***38%*:**Interactive Quantum Mechanics Exercises for Just-in-Time Teaching***38%*:**Surveying physics and astronomy students’ attitudes and approaches to problem solving***37%*:**Graduate teaching assistants use different criteria when grading introductory physics vs. quantum mechanics problems***36%*:**Design and validation of the Quantum Mechanics Conceptual Survey***36%*:**Quantum Mechanics Conceptual Survey**