1. Introduce your own experience and qualifications: You can briefly introduce your education, teaching experience and results of the Olympic Games, so that parents and students can understand their professional knowledge and ability.

2. Provide curriculum plan: You can provide targeted curriculum design and teaching plan according to your own experience and students' needs, so that parents and students can see their professionalism and credibility.

3. Show teaching achievements: You can share your students' excellent achievements or other teaching achievements in the Olympic Mathematics Competition to prove that your teaching methods are effective and can help students get good grades.

4. Provide free trial classes: You can provide some free trial classes, so that students and parents can understand their teaching style and course content first, and then decide whether to continue to apply for classes. In short, in the process of selling themselves, teachers need to focus on showing their majors and strengths and leave a good impression on parents and students. At the same time, we should pay attention to communication and interaction with students and parents, pay attention to their needs and feedback, and make adjustments and improvements according to the actual situation.