text: Teachers are specialized in all of the subjects they are teaching students. They have taught these courses time and time again, and therefore know what materials and objectives students should understand when coming into their class or the first time. It is beneficial that a student has a little bit of background knowledge on the class they will now be taking. For example, going into a math class such as advanced functions and modeling, the teacher expects the student to know some algebra I and II, so he or she might give them a packet with some algebra to keep the student refreshed and prepared. Having a student design their own project to allow there to be analysis of the wrong information that may not be necessary to know for the class they soon will be taking. Or, the student does not go deep enough into the right kind of information.