DIDACTIC-EDUCATIONAL TOY FOR ELEMENTARY ARYTHMETIC OPERATIONS, READING AND WRITING

摘要

The disclosed didactic-educational toy is comprised of a series of parts or elements which are interconnected and which consist essentially of: a) rectangualar plates (1) which may be joined together by means of elongate boards (3, 4), carrying ten dowels (5) distributed in two rows of five; b) thinner plates (6) representing digital numbers from number 'one', consisting of a small plate, up to number 'ten' of maximum surface area, having an equal number of stepped cylindrical protuberances (7) with axial perforation (8) for insertion into the dowel-carrying plates (1); c) transparent templates (15) having each ten circular orifices (16); d) assembly parts (9, 20, 29) for assembling the digital plates (6); e) articulating parts (39) configured like hinges and connected to the lower face of the digital plates (30); f) reading and writing cards (61) placed on molds (66), as well as other cards (76) carrying words and allegorical drawings.