Originally Posted by jillio

TC is yet anpother outgrowth of the oral philosophy. It does not result in better speech skills, not in increased profieciency in English or sign because when manually coded English is used (as in the case of sim-com) the child is not being exposed to accurate models of any language, and it results in decreased fluency in both sign and speech. As a consequence, we end up with students that know something of both languages, but never develop native fluency in either.