If I don't do well in a quiz, is there any "extra credit" assignment I can do to get some points? Or can we make up the quizzes to get some of the points back? The videos go into a great amount of detail, which is great and helpful, but I wasn't too sure what to concentrate on. Today's quiz questions were kind of random and I would not have ever imagined to study those topics covered on the quiz. 

Basically, can we make up some quizzes through some assignments (maybe programming assignments ) or at least give us some things to focus more on while watching videos. Thank you.