1. Make a reasonable preparation plan. According to your schedule and test date, reasonably allocate daily study time and tasks to ensure that every knowledge point is fully reviewed and practiced.

2. Choose good teaching materials and counseling materials. There are many textbooks for Math III in the senior high school entrance examination, so you can choose the one that suits you according to your own situation. At the same time, you can also attend some training courses or buy some counseling materials to strengthen your understanding and mastery of knowledge points.

3. Pay attention to the study and consolidation of basic knowledge. The investigation content of Mathematics III for Postgraduate Entrance Examination involves a lot of basic knowledge. If the foundation is not solid, the later study will be very difficult. Therefore, it is necessary to take time to learn the basic knowledge well and consolidate it continuously.

4. Do more questions and practice more. The entrance exam of Math 3 is difficult, and it needs a lot of practice to improve your problem-solving ability and exam-taking ability. You can practice by doing real questions and simulated test papers over the years.

5. Pay attention to psychological adjustment. Preparing for the postgraduate entrance examination is a long-term task, which requires patience and perseverance. Pay attention to keep a good attitude, don't be discouraged when encountering difficulties, actively seek solutions, and believe that you will definitely achieve good results.