The class that I took was teaching me how to teach biology to elementary schoolers, so it wasn't that difficult, but the timing was not so great. It was a 2 hour afternoon class. So I was basically falling asleep the whole time.
if you're thinking about taking half semester classes, make sure you weigh the pros with the cons. It's great to be able to be done with a class so early, but the class periods were so long. Talk with your adviser to see what the best options are for you!
<3 Ellie