5. An educational toy as defined in claim 1, wherein said slider pieces are the same number as the cutouts of said guide plate.
1. An educational toy comprising a body having a peripheral vertical wall, a guide plate secured on said body and having a plurality of cutouts to be passages, a connecting passage formed between said vertical wall and said guide plate for communicating with said cutouts, a spacer disposed between said guide plate and said body, a plurality of slider pieces slidably and undetachably movable along said cutouts and said connecting passage and a plurality of inwardly extending lugs formed inside the peripheral vertical wall of the body to prevent detachment of said slider pieces.