## Materials Similar to *Tracing Difficulties With Relativistically Invariant Mass To Difficulties With Vector Addition Of Momentum In Newtonian Contexts*

*45%*:**Vector Addition: Effect of the Context and Position of the Vectors***34%*:**Students' difficulties with unit vectors and scalar multiplication of a vector***33%*:**Vector Addition in Different Contexts***31%*:**Student difficulties with quantum states while translating state vectors in Dirac notation to wave functions in position and momentum representations***30%*:**Student Difficulties with Graphical Representations of Negative Values of Velocity***25%*:**The effect of context on student's reasoning about forces***25%*:**Investigation of Studentsâ€™ Preconceptions and Difficulties with the Vector Direction Concept at a Mexican University***23%*:**Students' Conceptual Knowledge of Energy and Momentum***23%*:**Studentsâ€™ Responses to Different Representations of a Vector Addition Question***23%*:**Students' Difficulties in Interpreting the Torque Vector in a Physical Situation***22%*:**A hierarchical model of the development of student understanding of momentum***22%*:**Improving student understanding of addition of angular momentum in quantum mechanics***22%*:**Student Difficulties with Trigonometric Vector Components Persist in Multiple Student Populations***20%*:**Comparing Student Use of Mathematical and Physical Vector Representations***20%*:**Addressing Student Difficulties with Buoyancy***20%*:**Students' understanding of the addition of angular momentum***20%*:**Multiple-choice test of energy and momentum concepts***20%*:**Initial understanding of vector concepts among students in introductory physics courses**