The latest issue of Physics Today has a freely available article that, under the title Improving students’ understanding of quantum mechanics, gives a very interesting analysis of student’s difficulties when faced with university courses in Quantum Mechanics:
Extensive testing and interviews demonstrate that a significant fraction of advanced undergraduate and beginning graduate students, even after one or two full years of instruction in quantum mechanics, still are not proficient at those functional skills. They often possess deep-rooted misconceptions about such features as the meaning and significance of stationary states, the meaning of an expectation value, properties of wavefunctions, and quantum dynamics. Even students who excel at solving technically difficult questions are often unable to answer qualitative versions of the same questions.
The article goes on describing little problems posed to students and how they revealed fundamental misconceptions (if you know a bit about QM you may find interesting to try your hand at them too), and proposing ways of improving their understanding by means of interactive software and tutorials (more fun ahead). Recommended.