"Literacy can be seen as dependent on instruction, with the corollary that quality of instruction is key.
"This view emphasizes the developmental nature of literacy-- the passage of children through successive stages of literacy, in each of which the reading and writing tasks change qualitatively and the role of the instructor has to change accordingly." (Chall, 1996 as referenced in Snow, 2004)
What is essential?
Gaining a command of language and literacy over time is the essential bit. In this, I want to keep things simple. The literacy learner acquires alphabetic knowledge. That is, the individual learns that letters are meant to represent sounds, and that these sounds are combined to form words. These words can come to represent aspects or objects in one's environment, experience or imagination. One is better prepared to break a word down into its sounds (or component parts) if the word is familiar to one. So we have a picture in which objects in someone's environment or imagination are connected to words uttered by a person which can be broken down into sounds that can be represented by a written system. And this written system is rule-governed, but one call also argue that the practice of literacy is also rule-governed.
Individuals should be motivated by the desire to represent or convey observations about objects, which requires that one to string words together in the form of sentences and propositions. It is essential that the learner is also able to extract meaning from them, as well. In this case, an individual is motivated to report or narrate or recount, and to interpret reports, narratives, recounts, etc. One can imagine a learning experience in which a finite portion of the language is selected that allows one to learn a portion of particular sound patterns, develop a thematic vocabulary, and use this knowledge to read, write and discuss observations in a particular domain.
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