Scheduling varies by school, but here is what is typical for schools operating on semesters:
- Most courses meet for 3 hours each week. Typically, this is MWF 50 minutes each, TTh for and hour and 20 minutes each, or once a week in a single 3 hour block, with breaks.
- Some electives, like PE activity courses, meet on the same schedule, but are only worth 1 credit hour.
- 12 credit hours is generally considered full time. 120 credit hours is generally required for graduation. Thus you need to average 15 credit hours per semester (5 courses) in order to graduate in 4 years.
- Many courses also require you to enrol in a lab or discussion section in addition the course.
- Schools set the schedule based on demand for the course, availability of rooms and availability of faculty. Some required courses (English 101), will have several different sections which meet on different days and times, while upper division courses are likely to only be offered once. Generally the selection of night courses is limited.
- Once the schedule for the next semester is released, student submit their requests for the courses and specific sections they with to take. The school then assigns students to their classes. If a student doesn't get the class they want because it was already filled by others requesting, they will need to complete there schedules by selecting classes which still have open spaces.
- Students are free to choose which classes they apply for. Factors to consider, beyond requirements for their program, can include: the number of days you want to be on campus (there are times to have a schedule where all of your classes meet MWF or TTH), back-to-back classes (had a schedule with 4 hours straight MWF which wasn't pleasant), the time gap between classes (a 3 or 4 hour gap can be great if you have a job on or near campus), and campus geography (is it physically possible to get from one building to the next in the 10 minute break between classes).
- Taking attendance? - varies by school and class. The large lecture courses I took as an undergrad or for which I TA'd in grad school never took attendance. But trust me, at exam time it becomes very clear who skipped more than a lecture or 2.
- Final RULE OF THUMB - whatever schedule you have, for each hour of lecture and class meeting, you should expect to spend AT LEAST 2 reading, working on assignments, prepping for quizzes and exams, etc.