The classification of wrong problem sets is very important. Reasonable classification can not only make you see the problem faster and more clearly, but also make you more comfortable to check for leaks and fill gaps. So the wrong set of questions is very important. When sorting out the wrong questions, I make a notebook to write the wrong questions, which can be divided according to the types of questions or the knowledge points of investigation. Personally, I prefer to divide according to knowledge points.

If divided according to the types of questions, that is, multiple-choice questions are multiple-choice questions, fill-in-the-blank questions are fill-in-the-blank questions, and big questions are big questions. This method is used by most people, but I don't like it. Personally, I prefer to divide the questions according to the knowledge points. For example, this knowledge point may have big questions, multiple-choice questions and fill-in-the-blank questions. When I realize which knowledge point I don't know, I can put a knowledge point.

So these two methods still depend on which one you prefer. I recommend the second method.