University of Washington
University of Washington: Patterns of Organization
In addition to defining and describing various patterns of text organization, this website provides outlines illustrating each pattern. RI.11-12.3 Text development
Other
Hong Kong Polytech: Functions in Academic Writing
Provides a wealth of interactive exercises dealing mainly with the structuring of sentences in different kinds of academic writing.
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Kim's Korner: Patterns of Organization
This resource from Kim's Korner for Teacher Talk defines various patterns of text organization and provides a brief essay example of each pattern.