We will return to these matters in the following sections, for the difference deficit issue underlies much of the sociolinguistic investigation in education. We have simply been concerned here to delineate the positions as they bear upon the pre-school child. It is clear that we agree with Gumperz and Hernandez-Chavez (1972) when they state that for all children, regardless of dialect, there exists "control of a fully formed grammatical system" (p. 84) at the time of school entry (although perhaps "well-formed" might be slightly more accurate here).