Problem sets will be generally posted every Friday. Some of the problems in each set will be covered in the following week's recitation. Other problems, not in the posted sets, may also be covered during recitation.
At a minimum, you must be able to do all the unmarked problems in order to pass the class. And you must do reasonably well with the * problems in order to get a satisfactory grade.
The best way to approach the problem sets is to do the unmarked ones by yourself. For the *'d ones, spend sufficient time working on them by yourself (remember, you must be able to do them reasonably well) and then work with a friend to verify your answer or exchange ideas if need be. For the **'d ones, spend some time thinking through possibilities, and then definitely discuss ideas with a friend.
For each problem set, solutions to selected problems will be posted after you have had sufficient time to work through the problems on your own. However, problems covered in recitations that are not in the problem sets will NOT have solutions posted. For that, you will need to attend recitation.