casting

Hey everyone! Noob here. We're looking for a presentation system for our vocational school. Something that'll let us all collaborate and cast content on the same screen. I attended a show a few months ago and saw a system called DVDO Tile. I think it's still new but there is info out there on it...

How does it work? I go to Fox app on my iPad and select a program. I select the cast button and pick my TV. Voila! The show is on my TV! Sony X750D running Android TV. But how? The app just tells the Fox site to send the program data to my TVs IP address? What in the TV just ignores...