BOB...Matrices

When talking about matrices it is all pretty simple, until you get into the word problems. Since i missed both classes on monday, i don't really understand exactly what to do. From working on some in class and having other people sort of explain how they got answers I'm starting to pick up little things her and there. But it's not enough for me to be able to do questions on my own, i still don't have a good enough grasp on the whole concept of it all. I'm just hoping that over the next few classes before the test it can get explained a little bit more, and I will probably have to go in for some extra help. Other than the word problem matrices, it has actually been pretty good.