? Nothing is more important than teaching children, and nothing is more enjoyable than reading. Family education is very important. On the afternoon of September 28, 217, Professor Dong Huiqin of Shandong Normal University worked tirelessly to give the second lecture entitled "The Occurrence and Development of Speech" to all the students in the first-stage course training course of "Family Education Instructor" (the fifth phase).

In chronological order, Mr. Dong expounded the occurrence and development of infant speech from three aspects: infant speech development, early childhood speech development and childhood speech development. First of all, the speech in infancy. Teacher Dong introduced the theory of speech development. The process of language occurrence should be regarded as a complex dynamic system with many factors interacting and interacting. Teacher Dong showed us the law of speech development in infancy by analyzing the characteristics of speech development in infancy. Secondly, the development of speech in early childhood, which is mainly manifested in the development of vocabulary, grammar and oral expression ability, including the increase of vocabulary, the expansion of parts of speech, the growth of positive vocabulary, the mastery of grammar and the mastery of coherent speech. Finally, the development of childhood speech is mainly manifested in the development of written speech and internal speech.

Mr. Dong has studied infant education for more than ten years, with profound theoretical research skills, typical cases and profound analysis. Mr. Dong's lecture was well received by the students.

Expert profile:

Dong Huiqin, Ph.D. in psychology, associate professor of Shandong Normal University, and tutor of postgraduate students. Research direction: children's personality and social development. In recent years, the focus of research work is the diagnosis and correction of preschool children's problem behavior and the cultivation of good behavior. He has successively undertaken and participated in the Youth Project of Humanities and Social Sciences of the Ministry of Education "Research on Strategies for Children Aged 3-5 to Deal with Peer Aggression" (8JCXLX7), the National Natural Science Foundation Project "Children's Aggression and Peer Aggression: Development Track, Stability and Gender Differences" (357612), and the National Eleventh Five-Year Plan Project "The Relationship between Children's Aggression Development and Social Cognition" (EBA834). He has published more than 2 articles in Chinese core journals such as China Journal of Clinical Psychology, Psychological Science, chinese mental health journal and Research on Preschool Education, and published works such as Behavioral Intervention for Preschool Children's Problems, Physical and Mental Health Education, Bullying Problems and Intervention for Primary and Secondary School Students.