Howard Students...I have a QUESTIOn!?

i need a response 911...when u go to register for your classes, how do you know which one to take or better yet the scheduling information like the length of the classes and stuff. I will be a Communications major (radio-tv-film) & Im not even gonna lie, im kinda confused! I have to do this b4 its too late so if you can help....PLEASE feel free to do so; )
-Thanx-