My "class" notes and problem solutions. Most are typed with MS Word and I made a pdf file of each as well.
I found this the best intro course ever for QM. It oscillates between being rigorous and heuristic. The heuristics provided insights but also caused confusion.
In my notes (110 pages) I fill in tons of details so that I could better understand. Often I would re-order the presentation of a topic to make it more rigorous. I retained the book's equation numbers but this causes them to sometimes be a little out-of-order in my notes. I also numbered many more equations, many in the book but un-numbered, lots of them not in the book but needed. I prove many of the statements in the book that were made but not proved. Again, for my own understanding.
I am sure there will be a few errors in my solved problems though I am not aware of any. I worked several problems that either no one else posted on the official site, or that were worked incorrectly. In particular, I worked Exercise 4.6, which I believe was mis-stated. Those who posted a solution to this problem stated that it didn't make much sense. I corrected the wording of the problem. I believe it was meant to build on 3 prior exercises, bringing an entire topic to a conclusion. It is a shame that such an important problem was mis-stated.