Introduction to Kindergarten Chinese as a Second language (KCSL): The class is suitable for children from 4 to 5 years old. The textbook is the first and second volumes of Chinese Language for Kindergartener from Jinan University. Each book has 10 lessons, about 60 new words, and 20 sentences. In the classroom, children learn Chinese by singing, playing games and making crafts, and train the children's speaking, listening, reading, writing skills, especially recognizing the Chinese characters. The teacher will introduce Chinese culture and supplementary materials according to the learning progress of the students, and design homework. Supplementary materials include season, date, animal, direction, solar system, math, shape, color, fruit, etc.