13. The teaching apparatus of claim 12 wherein said colors further comprise a second color corresponding to said graphemes characterized by voiced sound production, a third color corresponding to said graphemes characterized by unvoiced sound production, a fourth color corresponding to said graphemes characterized by nasal sound production, and a fifth color corresponding to said graphemes characterized by a mixture of characteristics of sound production.
14. The teaching apparatus of claim 13 wherein said first color is red, said second color is pink, said third color is yellow, said fourth color is green, and said fifth color is blue.