1, provide clear standards and rules: Competition rules and referee law provide clear standards and rules for coaches, so that they can train and guide according to specific competition requirements, and coaches can arrange students' training contents and technical requirements according to the rules to ensure their best performance in the competition.

2. Evaluate students' performance and progress: Competition rules and judging methods provide a basis for evaluating students' performance and progress. Coaches can evaluate and score students' routine drills according to the requirements of rules and the guidance of referee law, so as to understand students' technical level and progress.