Communicative language teaching has been hailed as a revolution, and i
t has achieved a solid base of widely accepted principles setting it a
part from previous paradigms. Yet its transmission from scholars to te
achers has been hampered by unnecessary debate and confusion. This pap
er explores the reasons why the channels of diffusion in the field hav
e been unsuccessful, and suggests that further progress depends on ove
rcoming disunity and translating consensus into standard course materi
als appropriate to local teaching conditions.