In this article we explain how to finalize the over-forced data injection revolution, produced by the usage of multimedia projectors (and a variety of other presentation devices) in education. The projector 'as is' is not a better class board., as it mutually doesn't reproduce its default functional and rather non-trivial special measures should be taken only to restore all its mutual functionalities - clear attention focus in step-by-step explanation generally synchronized with understanding and understanding supervising via following the teacher (lecture) by writing the conspectus and simultaneous or farther understanding checking in task solving with simultaneous or further (seminar) discussions. As it was shown by short lectures (like in Google format, lasting usually for several minutes) the increase of capacity in data transmission may be if not by one order, but at least several times. But this would not be the case with learning velocity increase if one does not produce proportional and simultaneous advance in a full stack of data receiving procedures including final control, intermediate assistance, and proper presentation format maintenance adequately synchronized with normal pupil operative memory size. Here we discuss measures that guarantee the corresponding result. If other tactics will appear it may be a topic of new discussion to run.