2. Questionnaire survey: Through questionnaire survey, we can understand the views and opinions of parents and teachers on children's language development and provide reference for children's language education.
3. Experimental method: Explore the laws and influencing factors of children's language development through experiments, and provide theoretical basis for children's language education.
4. Recording method: By recording children's language behavior and communication, we can understand children's language development and provide a basis for making personalized education programs for children's language education.
5. Shot tracking method: By recording and observing videos, children's language behaviors are analyzed and evaluated in detail, which provides reference for children's language education.