Raojān Pilot X is your new digital teaching station, designed to mobilize teachers and increase student engagement. It combines every essential classroom technology into one convenient, wireless station. It’s a high powered tablet computer, a 4K document camera, and a wireless podium all in one.  http://thelocalteachers.co.uk/questions/using-calculus-find-the-coordinates-of-the-stationary-point-on-the-curve-with-equation/ Easy, just roll the station around the room – without wires! Watch it in Action.