In the forth lesson of the Chinese Series Courses, Colorful Holiday, students could understand the origin and related customs of the traditional Chinese festival Mid-Autumn Festival, and learn Chinese vocabulary and idioms about the Festival through easy-to-understand dialogue. The cultural knowledge part will lead students to appreciate and understand some Chinese poems describing the moon. Through fun exercises, the learners can fully understand and master the origin and customs of the Mid-Autumn Festival. In addition, this course allows learners to understand the famous verses describing the moon in Chinese poetry.