Abstract: An educational toy based on the use of three-dimensional numerical figures which can be more easily memorized upon their manipulation by a child and which are constructed and arranged to be interconnected to form a three-dimensional representation of a human head having different facial expressions representative of different moods, such as sadness, sorrow, joy, fright, surprise, etc. This toy includes a plurality of three-dimensional numerical figures including the ten different numerical figures forming the arabic numbers and having each a connecting aperture, projection or both to removably interconnect sets of those figures to form different facial expressions.