*63%*:**Spin First instructional approach to teaching quantum mechanics in sophomore level modern physics courses***60%*:**Student perceptions of math-physics interactions throughout spins-first quantum mechanics***51%*:**Energy measurement resources in spins-first and position-first quantum mechanics***49%*:**Spin First vs. Position First instructional approaches to teaching introductory quantum mechanics***44%*:**Faculty Disagreement about the Teaching of Quantum Mechanics***44%*:**Students' dynamic geometric reasoning about quantum spin-1/2 states***42%*:**Graduate Quantum Mechanics Reform***42%*:**Student difficulties with quantum states while translating state vectors in Dirac notation to wave functions in position and momentum representations***42%*:**Sense-making with Inscriptions in Quantum Mechanics***41%*:**Designing, validating, and contrasting conceptual quantum mechanics questions for spin states and spatial wave functions***41%*:**Development, validation and in-class evaluation of a sequence of clicker questions on Larmor precession of spin in quantum mechanics***38%*:**A Modern Approach to Quantum Mechanics***38%*:**Teaching quantum mechanics on an introductory level***37%*:**Numerical Time Development in Quantum Mechanics Using a Reduced Hilbert Space Approach***37%*:**Time Development in Quantum Mechanics Using a Reduced Hilbert Space Approach***36%*:**Representations of partial derivatives in thermodynamics***36%*:**Representation issues: Using mathematics in upper-division physics***36%*:**Categorization of quantum mechanics problems by professors and students***36%*:**Optimization of Simulations and Activities for a New Introductory Quantum Mechanics Curriculum**