Can be downloaded. Yunduo classroom is a long-distance synchronous teaching project based on Jingyang District MAN, which aims to promote the sharing of high-quality educational resources and the balanced development of urban and rural education in Jingyang District. Click download directly in official website of Cloud Classroom. Cloud classroom realizes the synchronous teaching of two-way interaction between two classes in different places through streaming media technology, and each class has high-definition recording, which is used in online teaching space.