Instead of studying and thinking about high school mathematics, it is better to lead the world and train outstanding students. Because world leaders pay more attention to the training of mathematical thinking and the in-depth explanation of knowledge points, they can better help students understand and master mathematical knowledge. Learning and thinking about high school mathematics pays more attention to problem-solving skills and examination skills, which may be more suitable for examinations. Therefore, from the perspective of long-term learning, leading the world is more suitable for students' development.