1. An educational system for teaching individuals their emotions, comprising: (a) at least one set of faces; (b) said set of faces being correlated with a respective one of a multiplicity of different emotions experienced by individuals from time to time; and (c) for said respective one emotion correlated with said one set of faces, a plurality of states of said respective one emotion are defined in the form of a different facial expression on each of said faces of said one set of faces.