answer:Usually the classes that are over a shorter period of time meet more often or for longer time period and require a lot more work at a time then the ones over 12 or more weeks. They are generally the same as the longer classes, just packed into a shorter amount of time so that they can be completed in a shorter amount of time. If you look at how many classes you would normally take over 12 weeks consider that taking 2 classes would be the same as taking 1 class the first 6 weeks and the 2nd class the second 6 weeks. So if you normally would take 6 classes in 12 weeks, you should be able to do 3 classes for the first 6 weeks and then 3 classes the second 6 weeks. Since this is the first time you will be taking the class in shorter time periods, you might want to start off with 2 the first time to get an idea of how much work you’ll be doing in that 6 weeks.