Educational equipment with multiple configurations

An apparatus including educational material, the educational material comprising a plurality of information storage media of identical sizes, carrying data that is at least partly different, wherein each medium is in the form of a board comprising an outer frame, at least two inner frames, and at least four vignettes carrying at least part of said data, in that the outer frame of each board has at least two main windows (20) in each of which one of said inner frames is removably inserted, in that each inner frame of each board has at least two auxiliary windows in each of which one of said vignettes is removably inserted, in that the main windows, the inner frames, the auxiliary frames, and the vignettes of all the boards have respective identical dimensions, the inner frames therefore being mutually interchangeable and the vignettes therefore being mutually interchangeable, and in that each insert consisting of an inner frame inserted in a main window or of a vignette inserted in an auxiliary window is joined to the window in which it is inserted by a friction force applied between the edge of this insert and the edge of this window.