The mid term will consist of multiple choice questions taken from the homework or old quizzes. To prepare for it you should study your homework and old quizzes. Most of the questions will be multiple choice. You will be required to do ONE problem. There will be 3 or 4 choices. They will come from the questions or problems section or question 11 from the quizes.
I would really concentrate on the multiple choice.
The midterm exam will be as stated on the schedule (see Course Info) .