Your materials are going to depend on your procedure. What is that you are going to test your participants on? You are likely going to need materials to present to both groups initially (ex. a passage about a geography topic), materials for the study session (ex. you might give one group the passage again to review any way they choose and give the other group a set of pre-made flash cards to study).
You will also need testing materials. You'll need to design a test and decide how to score it. The test score is your dependent variable. Lots of decisions to make here: should it be a free recall test, multiple choice test, fill-in-the-blank, etc? Will it be presented on paper? On computer? Will it be timed?
If you are going to test participants very shortly after the study phase, you may also want to come up with a distractor task (like working arithmetic problems) for them to do between the study phase and testing so they have a chance to forget and you can get a better idea of what they are really retaining.
This is just a little bit to get you started. Like GCT was saying, go back to the concept definitions. When you know what you want to test and how you want to test it, it the concepts should start to make sense.