English version 1 launched. Changes from Gattegno’s 1978 American English Silent Way set included:
Charts printed on Tyvek substrate with Gattegno’s Pinske font (as updated and digitised by Educational Solutions Inc.).
Added Family Word chart.
English version 2 launched:
Change from Tyvek to Polypropylene substrate.
Change from Polypropylene to Synthetic Canvas substrate.
Spanish Silent Way version 1 launched. Differences from Gattegno's set:
English PronSci version 3 launched:
French SW version 1 launched. Changes from Gattegno's version:
New Rectangle chart, consistent with an articulatory analysis of French pronunciation
New Fidel, organised in blocks reflecting the layout of the Rectangle chart, rather than in columns. The sizes of the font give indications about the use of the graphemes.
New Word charts, reorganised to be better adapted for non-beginners.
French SW version 2 launched. Modified Rectangle chart. Coding for the liaison system modified in the Fidel and Word charts.
New French Verb chart, giving examples of all the types of conjugations.
Alternative Fidel 'avec terminaisons muettes' to develop the grammatical dialogue used by writers of French.