The model under discussion was elaborated in response to our need to
construct a general, explicit and integrative framework for the seemingly
different strands of research that we and our associates have carried out in the
last decade or so. The findings of these studies made it increasingly clear to
us that it is impossible to account for the dramatic changes in language
knowledge and language use in children and adolescents within the boundaries of current research paradigms in language acquisition. Our goal was
thus to relate later language acquisition and children's increasing cognitive
abilities to literacy development in a motivated way, focusing on germane
themes in socio-linguistics and discourse analysis, on the one hand, and
facets of written language, on the other.