2007年10月23日星期二

text process

The text processing plays an important role in online learning. Research findings indicate that world recognition must be accurate and automatized in order for text comprehension to occur (e.g., Adams, 1990), because most online learning materials are based on text. Through the construction-integration model of comprehension developed by Kintsch, there are two stages occurred. During the first stage, concepts from the text, as well as syntax, semantic, and world knowledge are activated to produce a network of activated concepts. The second stage is regerred to as the reader’s mental representation. In addition, a good text must be occurred good micro structure and macro structure. For micro structure, you should explain the definition properly, and must ensure that ideas and sentences are internally coherent. For macro structure, it is recommended that web authors provide a site map or advanced organizer so that readers have a mental picture of how the webpage is organized.

Narrative and Expository text are tow kind of form for readers. Narrative text is easy for readers to develop a strong mental representation, because the manner is familiar to the reader. Obviously, this is not the case with expository text. It is full of technical jargon, theory, and assumptions about the reader’s knowledge base. Therefore, mental representations of text, text coherence, and topic familiarity all contribute to text processing (e.g., van Dijk & Kintsch, 1983).

In one word, the syntactic and semantic knowledge, micro structure and macro structure understanding are required for both online learners and authors.

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