Adhere to the three combinations, establish two mechanisms and form a system. "Three combinations" means combining the Guiding Outline of Kindergarten Education, the Guiding Outline of Learning and Development for Children Aged 3-6 and epidemic prevention to carry out teaching activities. There are two mechanisms: one is to establish a course review mechanism, and the other is to establish a return visit mechanism. One system is to establish a trinity teaching system of kindergarten, family and society.