The Silent Way: Fidel (spelling charts)
The Fidel is a set of charts presenting all the possible spellings of each sound of the language using the same colour code as the Sound/color rectangle chart and Word Charts. This Fidel was originally created for teaching native speakers to read with Words in Color.
However it is also useful when the foreign language uses signs unknown to the student, for example, an English person learning Japanese or vice versa or when the same signs correspond to different sounds as in English and French or when there are many irregularities in spelling.