The Silent Way Fidel descended from the Words in Color Fidel originally created by Gattegno. It displays all the spelling of the English language arranged according to their sound. The arrangement of the chart is identical to that of the Sound-Colour chart. Pictured below in the Bristh English Silent Way Fidel, created by Piers Messum and Roslyn Young.
Any teacher can begin experiment with a Fidel in their own classroom, by building a DIY-Fidel.