You should feel free to send e-mail to the TAs and ask if you can meet with them to go over problems and how to solve them. If many people are asking, we might set up a problem solving session for interested students (I'll bring this up at the next TA meeting). Another source of help is to look at some of the examples in the suggested books. While some of the topics we have covered in the course up to now have been a bit non-traditional, the rest of the term will be on topics that have *lots* of standard references (almost any of the books on the course syllabus, all of which are on reserve in SFL).