Please use the course discussion board to discuss concepts, questions, specific issues about assignments, and so forth. Don't post solutions or parts of solutions though. The board is divided into different sections -- please use the appropriate one for your post. There is also a class mailing list for announcements.
Some assignments will include "extra credit" sections. These will enrich your understanding of the material, but deliberately will provide scant credit in proportion to the work required. Do them for what you'll learn beyond the basics, not the points, and don't even think about starting the extra credit portion until the main problems are complete.
The midterm will be in class Friday Nov 6. The sections the day before will be review sessions.
The final will be in the regular classroom, Dec 15, 2:30-4:20pm. The last regular lecture, on Dec 11, will be a course recap and review for the final. There was also be a optional question-and-answer review session the afternoon of Dec 14, 4:30-5:20, in MGH 241 (our regular classroom).
For practice exams, see previous offerings of the course. The mini-exercises are also good study material.
You can email all the TAs and the instructor at cse341-staff at cs. (This is the best address to use for a faster response, since whoever gets to it first will reply.)