Calculation (whether the correct rate and time are carefully grasped, etc.). )
Methods (mainly some skills taught by teachers and their own accumulated methods)
Disadvantages (Mathematics is generally a change of typical problems, so you can look up the papers for one semester and analyze them carefully. What is basically wrong is a question type).
Classroom efficiency
Because there is no test paper, I can only give you some advice. You can compare it. Of course, this is only your own experience, not necessarily complete.
The usual test paper also hides your same problem. It's best not to analyze only one set of papers, and don't entangle some accidental factors.
I wish you excellent grades in the future!