So far, math class has been about solving problems. As long as you could come up with the answer, that was good enough. However, geometry requires that you be able to form conclusions based on some given information and show how you did it, citing the names of rules you used to complete it. Only then is it considered a proof. This can be genuinely confusing for the majority of students. Some become extremely frustrated by it, especially if they had proficient math skills up to this point. Geometry is also a class that ranges wildly in difficulty level and content. Unless the class is a regents geometry class, it is not fair to make certain assumptions about its table of contents. We will need to investigate what type of course you are in to make any conclusions.