Multi-screen casting system for flipped teaching classroom

A multi-screen casting system for a plurality of students and at least a teacher within a flipped teaching classroom, comprising, within the classroom,

• a first receiving screen having a first video/audio/data receiving interface (HDMI, High-Definition Multimedia Interface), where the first receiving screen is a self-illuminating display device;
• a second receiving screen having a second video/audio/data receiving interface (HDMI, High-Definition Multimedia Interface), where the second receiving screen is a reflection-type display device;
• a first multimedia streaming device which is controlled by the top-governed teacher and wiredly or wirelessly connected to the first and second video/audio/data receiving interfaces (displaying identical contents), respectively;
• a second multimedia streaming device which is comprised in the inter-casting devices and wirelessly connected to the first and second video/audio/data receiving interfaces (displaying identical contents), respectively;
• a plurality of inter-casting devices, one for each student and the temporally moderated teacher, where each inter-casting device is one of a notebook computer/smart phone/tablet computer and can be the one of second multimedia streaming device on demand;
• and
• a wireless broad band base station providing a dual-band (2.4 GHz and 5.0 GHz) WiFi local area network (LAN);
• wherein each of the inter-casting devices conducts a peer-to-peer transmission of video/audio/data with another inter-casing device or with one of the first and second multimedia streaming devices over the WiFi LAN;
• each of the inter-casting devices conducts a peer to multi-peer (i.e., one-to-many) transmission of video/audio/data with the first and second multimedia streaming devices and at least another one inter-casing device over the WiFi LAN;
• the first and second multimedia streaming devices may assign the video/audio/data material to be displayed on the first and second receiving screens;
• the peer-to-peer and peer-to-multi-peer (i.e., one-to-many) transmissions of video/audio/data occur in a time-sharing manner and shunt-distributed-channel allocation among the inter-casting device over the WiFi LAN;
• and
• the first and second receiving screens are always visible to all inter-casting devices (i.e., the students and the top-governed/temporally-moderated teacher).