听说这门课比较难，是不是真的呀？谢谢！！

Different lecturer teaches different topic which is supposed to be the most tough part in this module , but the basic parts are almost the same. As I know, they ever taught Euclidean geometry ,Vector geometry or Projective Geometry as their last chapter respectively. It means the challenging problem will be raised there in their examinations. I Suggest that you make sure who is the lecturer first and in which arena he is doing his research currently.