Use outside resources as much as possible! Some things McCracken tries to explain but she cannot get the point across well enough for you to understand, so use Khan Academy and YouTube to help understand concepts. She doesn't really expect you to memorize everything, but also her tests may get confusing.

Try to find outside resources to go over stuff learned in the class, mainly the concepts are usually hard to understand. McCracken knows what she's talking about but it sometimes it's hard to understand when she's explaining a new concept.