Firstly - why don't you ask your instructor???
Different people have different ways of explaining things; an instructor may have three ways of explaining something but if none of those ideas works, then the student will still end up confused.
There are also differences in the way some brains understand and retain information; some like a graphical depiction, some verbal explanation and others like to see it in writing.
Another person's viewpoint and ideas are good to read. In addition, something like this will probably mean I won't have to ask the same question in a few months time!
Cheers
Whirls