11 Unity & Coherence

Preserving Unity

Academic essays need unity, which means that all of the ideas in an essay need to relate to the thesis, and all of the ideas in a paragraph need to relate to the paragraph’s topic. It can be easy to get “off track” and start writing about an idea that is somewhat related to your main idea, but does not directly connect to your main point.

All of the sentences in a paragraph should stay “on track;” that is, they should connect to the topic. One way to preserve unity in a paragraph is to start with a topic sentence that shows the main idea of the paragraph. Then, make sure each sentence in the paragraph relates to that main idea.

If you find a sentence that goes off track, perhaps you need to start a separate paragraph to write more about that different idea. Each paragraph should generally have only one main idea.

As you pre-write and draft an essay, try to pause occasionally. Go back to the assignment prompt and re-read it to make sure you are staying on topic. Use the prompt to guide your essay; make sure you are addressing all of the questions. Do not just re-state the words in the prompt. Instead, respond to the questions with your own ideas, in your own words, and make sure everything connects to the prompt and your thesis.

Another way to think about unity in a paragraph is to imagine your family tree. Draw a quick sketch of your family tree in your notebook. If you were writing an essay about your family, you might write a paragraph about close family members first. Next, you might branch out into another paragraph to write about more distant relatives. You might even include a paragraph about very close family friends, or pets. Each paragraph would have just one main idea (immediate family, more distant relatives, close family friends), and every sentence in each paragraph would relate to that main idea.

Ensuring Coherence

There are several ways to create connections between ideas in your essay. Here are some suggestions:

1. Repeat key words and phrases. This can be a powerful way to make a point. Consider this excerpt from Rev. Martin Luther King’s famous “I Have a Dream” speech at the 1963 March on Washington for Jobs and Freedom, in which he uses parallel structure:

I say to you today, my friends, so even though we face the difficulties of today and tomorrow, I still have a dream. It is a dream deeply rooted in the American dream.

I have a dream that one day this nation will rise up and live out the true meaning of its creed: “We hold these truths to be self-evident, that all men are created equal.”

I have a dream that one day on the red hills of Georgia, the sons of former slaves and the sons of former slave owners will be able to sit down together at the table of brotherhood.

I have a dream that one day even the state of Mississippi, a state sweltering with the heat of injustice, sweltering with the heat of oppression, will be transformed into an oasis of freedom and justice.

I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character. I have a dream today.

2. Use synonyms, as in this example, where King uses both repetition (“Let freedom ring”) and synonyms (for “mountains”):

And if America is to be a great nation, this must become true. So let freedom ring from the prodigious hilltops of New Hampshire. Let freedom ring from the mighty mountains of New York. Let freedom ring from the heightening Alleghenies of Pennsylvania. Let freedom ring from the snow-capped Rockies of Colorado. Let freedom ring from the curvaceous slopes of California. But not only that: Let freedom ring from Stone Mountain of Georgia. Let freedom ring from Lookout Mountain of Tennessee. Let freedom ring from every hill and molehill of Mississippi. From every mountainside, let freedom ring.

3. Use pronouns to refer to antecedents, as King does here; this can be more elegant than just repeating the key words and phrases:

I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character.

4. Use demonstratives (this, that, these, those) as adjectives or pronouns, as King does here:

I say to you today, my friends, so even though we face the difficulties of today and tomorrow, I still have a dream. It is a dream deeply rooted in the American dream.

I have a dream that one day this nation will rise up and live out the true meaning of its creed: “We hold these truths to be self-evident, that all men are created equal.”….

This is our hope. This is the faith that I go back to the South with. With this faith we will be able to hew out of the mountain of despair a stone of hope. With this faith we will be able to transform the jangling discords of our nation into a beautiful symphony of brotherhood.

 

5. Use transitions. Transition words and phrases will help you to make sure your essay has coherence. Also called signal words/phrases or signposts, these help to guide your readers.

Transitions connect your related ideas; they can also show your reader that you are starting a new topic, giving an example, adding information, explaining causes and effects, and so on. Using the correct transition word or phrase in a sentence can make your writing much clearer. Try the activity below to think of possible transitions.

After you have completed these activities with your partner, consult Transition Words & Phrases ~ Useful Lists for more on compare/contrast, addition, cause/effect, and other transitions to try.

Consult our chapter on Transitions for more inspiration on achieving coherence and cohesion in your writing. Challenge yourself to use some new transitions in your next composition.