*90%*:**Numerical Time Development in Quantum Mechanics Using a Reduced Hilbert Space Approach***34%*:**Using a Computer-Rich Curriculum to Teach Quantum Mechanics***34%*:**OSP-based Programs for Quantum Mechanics: Time Evolution and ISW Revivals***32%*:**Improving Students' Understanding of Quantum Mechanics***31%*:**Improving students' understanding of quantum mechanics by using peer instruction tools***30%*:**Interactive Quantum Mechanics Exercises for Just-in-Time Teaching***29%*:**Testing the development of student conceptual and visualization understanding in quantum mechanics through the undergraduate career***29%*:**Using Large-Scale Classroom Research to Study Student Conceptual Learning in Mechanics and to Develop New Approaches to Learning***29%*:**Representations for a spins-first approach to quantum mechanics***29%*:**Investigating student understanding of basic quantum mechanics in the context of time-dependent perturbation theory***29%*:**Spin First instructional approach to teaching quantum mechanics in sophomore level modern physics courses***28%*:**A Modern Approach to Quantum Mechanics***28%*:**Open Source and Open Access Resources for Quantum Physics Education***28%*:**Assessing Expertise in Quantum Mechanics using Categorization Task***28%*:**Quantum mechanics concept assessment: Development and validation study***28%*:**Learning Motion Concepts Using Real-time Microcomputer-based Laboratory Tools***27%*:**Investigating Student Difficulties with Time dependence of Expectation Values in Quantum Mechanics***27%*:**A novel approach for using programming exercises in electromagnetism coursework***26%*:**Investigating the applicability of Activity-based Quantum Mechanics in a few high school physics classrooms**