UnityA paragraph has unity when all the sentencessupport a single idea.The paragraph must have one controlling ideain thetopic sentence. Otherwise the paragraph loses focus.The supporting sentences must support or explainthe controlling idea with examples, details, steps, ordefinitions.Otherwise, the paragraph will not beabout one single idea.The concluding sentence should restate the idea inthe topic sentence. Otherwise the main idea mightwill not be clear.
Coherence■Everygoodparagraphinacomposition must havecoherence.■Coherence means that the reader isable to clearly follow the flow of wordsand ideas.■This is different fromcohesion.
Cohesion■Sentences and paragraphs should belinked together both structurally andsemantically.■Atextcanbecohesivebutnotcoherent.
Example■I am a teacher. The teacher was latefor class. Class rhymes with grass. Thegrass is always greener on the otherside of the fence. But it wasn't.
Coherence: LogicalBridges■Ideas are organized logically–Specific – general–General – specific–Simple – Complex–Chronologically – earliest to latest–Directionally: left-right, outside toinside, foreground to background