Identifying Main Ideas and Details
Finding Central Concepts
The main idea is the central argument or concept an author is trying to convey. Everything else in the text exists to support it. Sometimes the main idea is stated directly in a thesis statement or topic sentence, but other times you'll need to infer it from the text as a whole.
To find the main idea, look for information that gets repeated, emphasized, or referenced in both the introduction and conclusion. Ask yourself: What is the one point the author most wants me to walk away with? That's your main idea. Everything else is either a supporting detail or a minor point you can set aside.
The trickiest part is distinguishing between essential points and minor details. A good test: if you removed a piece of information, would the text's core argument still make sense? If yes, it's probably a supporting detail, not the main idea.
Recognizing Supporting Evidence
Supporting details are the specific facts, examples, explanations, and evidence that reinforce the main ideas. They're the "proof" behind the author's claims.
Supporting details come in many forms:
- Facts and statistics (survey data, percentages, measurements)
- Anecdotes (brief personal stories that illustrate a point)
- Expert opinions or quotes (authorities lending credibility)
- Examples (concrete instances of an abstract idea)
Each paragraph's details should connect back to its topic sentence, and each topic sentence should connect back to the thesis. When you're reading, trace those connections. If you can see how a specific detail supports a main idea, you're comprehending the text's structure, not just its surface content.
Concise Text Summaries
Creating Accurate Summaries
A summary is a shortened version of a text that captures only the most important information: the main ideas and the key details needed to understand them. Minor or irrelevant details get left out.
Accuracy matters more than anything in a summary. You need to represent the original text's content and intent faithfully, without misinterpreting or distorting the author's ideas.
Here's a reliable process for writing a summary:
- Read the full text carefully at least once.
- Identify the main idea (thesis) and the key supporting points.
- Set the original aside and restate those points in your own words.
- Check your summary against the original to make sure you haven't missed anything important or accidentally changed the meaning.
- Cut any details that aren't essential to understanding the main argument.
Summary Structure and Style
A summary should generally be no more than one-third the length of the original. A 9-page paper, for example, would get a 1- to 3-page summary at most. But length isn't the only goal; you need to include all the main ideas and key supporting details even while being concise.
A few style rules to follow:
- Write in third person, even if the original uses first person. Say "the author argues" rather than "I."
- Stay objective. Don't insert your own opinions, interpretations, or reactions.
- Use transitional phrases to maintain logical flow: "the author argues," "the text explores," "in conclusion."
Paraphrasing for Understanding
Defining Paraphrasing
Paraphrasing means restating a specific passage from a text in your own words while keeping the original meaning intact. It lets you reference an author's ideas without copying their exact language.
To paraphrase well, you need to genuinely understand the passage first. If you can't explain the idea without looking at the original sentence, you probably don't understand it well enough to paraphrase it yet.
Paraphrasing vs. Summarizing
The key difference: a paraphrase restates a short passage and stays roughly the same length as the original. A summary condenses a longer text into something much shorter. Paraphrasing rephrases; summarizing shortens.
One critical point about plagiarism: simply swapping out a few words or rearranging parts of sentences is not paraphrasing. That's still plagiarism. A true paraphrase uses your own wording and sentence structure.
Strategies that help you genuinely paraphrase:
- Use synonyms where appropriate (but don't force awkward replacements for common terms)
- Change word forms, like turning a verb into a noun or vice versa
- Alter sentence structure, such as switching from active to passive voice
- Split or combine sentences to restructure the flow
Even when you've fully paraphrased a passage, you still need to cite the original source with an in-text citation or footnote. Changing the words doesn't change where the idea came from.
Summarizing and Paraphrasing Techniques
Adapting to Text Types
These techniques work across genres, but you'll want to adjust your approach depending on what you're reading:
- Narrative texts (novels, short stories): Summarize chronologically. Capture key plot points, characters, settings, and themes. Skip minor subplots.
- Informational texts (textbooks, manuals): Focus on key terms, definitions, facts, and processes. Bullet points or numbered lists can help organize these summaries.
- Argumentative texts (editorials, speeches): Summarize the author's main argument and supporting claims. Include any key counterarguments the author addresses.
Considering Text Length
The length of your summary should scale with the length of the original text.
- Longer texts like books or research papers may need a multi-layered approach: summarize each chapter or section first, then write an overall summary of the main ideas. For research papers, the abstract serves this purpose and is typically one paragraph, no more than about 10% of the full paper's word count.
- Shorter texts like articles or essays can usually be summarized in a single paragraph. The 5 W's (who, what, where, when, why) are a useful framework for making sure you've covered the essentials.
Paraphrased passages, by contrast, are typically just 1 to 3 sentences, since you're working with a small excerpt rather than an entire text.