1. Teachers should treat angry students in a straightforward way, but they should not irritate them easily. They should be persuasive in severe criticism, cultivate their self-control, stick to the end and be bold and enterprising.

2. For bloody students, we can adopt various educational methods, but we should remind them regularly and severely criticize the shortcomings. Teachers should encourage them to overcome difficulties bravely, cultivate their solid and single-minded spirit and prevent them from changing their minds; Create conditions, give them more opportunities for activities, and cultivate their characteristics of vigor and resourcefulness.

3. For students with mucus, teachers should take patient education, give them enough time to consider and react, and cultivate their energetic spirit, warm and cheerful personality and sincere, practical and tenacious advantages.

4. For students with depression, we should take euphemistic hints, show them more care and love, and don't criticize them in public or too harshly, so as to cultivate their spirit of kindness, friendliness, gregarious and self-confidence, and cultivate their advantages of sensitivity, wit, seriousness, carefulness and strong self-esteem.

Good teacher-student relationship and harmonious classroom teaching atmosphere are the prerequisites for students to dare to participate. Students will be happy to learn only if they don't feel pressure and love the teachers they teach.