Critical Thinking

An Introduction to Critical Thinking
Critical Thinking Definitions
Critical Thinking: What It Is and Why It Counts
Defining Critical Thinking
Definitions of Critical Thinking
What Is Critical Thinking?

Grammar

Big Dog's Grammar
Daily Grammar Lessons Archive
English Works! Grammar Index
Exercises in Traditional English Grammar
Grammar Bytes
Guide to Grammar and Writing
Online Grammar Quizzes
Handouts: Grammar, Punctuation, and Spelling (Purdue Online Writing Lab)
The Tongue Untied

Paragraphs

Paragraph Development (University of North Carolina at Chapel Hill)
Paragraphs (RMIT University)
Paragraphs and Paragraphing (Purdue University)
Topic Sentences: Fact Sheet and Exercises (Massachusetts Institute of Technology)
Writing Effective Paragraphs (University of Richmond)
Writing Resources: Topic Sentences (Wheaton College)
Writing Tips: Paragraph Builder (WritingDEN)

Five-Paragraph Essay

5 Paragraph Essay (Hillsborough Community College)
Five-Paragraph Essay Sample: "My Job in an Apple Plant" (English Works!)
Five-Paragraph Essay Sample: "The Hazards of Moviegoing" (English Works!)
Sample Five Paragraph Essay: "The Three Africas" (Taft College Online Writing Lab)
The Five-Paragraph Essay (Guide to Grammar and Writing)

Keyhole Format

A Visual Guide to Organizing Your Papers
Keyhole Essay Model