Through the video, K1 children can get to know bus driver and learn to count from 1 to 4 in ordinal number. In the video, the teacher uses the first-person vision to take the children on the bus, let the children to assume the situation of taking bus in their daily life and understand the job nature of a bus driver. Furthermore, The teacher let the children count the number of passengers on the bus, and learn how to count from 1 to 4. This video is suitable for kindergarten teachers and pre-service students.