*60%*:**Spin First instructional approach to teaching quantum mechanics in sophomore level modern physics courses***57%*:**Quantum Interpretations in Modern Physics Instruction***49%*:**Understanding Probabilistic Interpretations of Physical Systems: A Prerequisite to Learning Quantum Physics***49%*:**Student Understanding of Period in Introductory and Quantum Physics Courses***47%*:**NARST 1999: Research on Teaching and Learning Quantum Mechanics***44%*:**Understanding probabilistic interpretations of physical systems: A prerequisite to learning quantum physics***44%*:**The Influence of Student Understanding of Classical Physics When Learning Quantum Mechanics***44%*:**Faculty Disagreement about the Teaching of Quantum Mechanics***43%*:**Assessing and improving student understanding of quantum mechanics***42%*:**Exploring Student Understanding of Energy through the Quantum Mechanics Conceptual Survey***42%*:**Spin First vs. Position First instructional approaches to teaching introductory quantum mechanics***41%*:**Teaching Quantum Theory in the Introductory Course***41%*:**Studentsâ€™ Conceptual Understanding of Quantum Physics in College Level Classroom Environments***39%*:**Displacement, velocity, and frames of reference: Students' understanding and some implications for teaching and assessment***39%*:**Resources Students Use to Understand Quantum Mechanical Operators***39%*:**Student Difficulties in Understanding Probability in Quantum Mechanics***39%*:**A Comparison of Student Understanding of Seasons Using Inquiry and Didactic Teaching Methods***39%*:**Interpretation in Quantum Physics as Hidden Curriculum***39%*:**Surveying Instructorsâ€™ Attitudes and Approaches to Teaching Quantum Mechanics**