The multi-screen casting system for a flipped teaching classroom contains, with the classroom, at least a receiving screen having a video/audio receiving interface connected to a multimedia streaming device, a set of at least two inter-casting devices, and a wireless broad band base station providing dual-band (2.4 GHz and 5.0 GHz) WiFi LAN communications. The multimedia streaming device contains firmware for locating and processing video/audio transmission within the WiFi LAN, and presenting received video/audio or data on the connected receiving screen. Each inter-casting device is one of a notebook computer, a smart phone, and a tablet computer. The inter-casting devices conduct, in a time-sharing manner, peer-to-peer communications among themselves and many-to-one communications to the multimedia steaming device of the receiving screen.
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