Overview of Writing Purposes
College reading and writing assignments often ask you to react to, apply, analyze, and synthesize information. In other words, your own critical thinking – your own informed and reasoned ideas about a subject – takes on more importance than someone else’s ideas.

Remember that critical thinking involves questioning. You ask and answer questions to pursue the “careful and exact evaluation and judgment” that the word “critical” invokes (definition from The American Heritage Dictionary). The questions simply change depending on your critical purpose. Different critical purposes with their different types of questions are listed below.
When you react to a text you ask:
- “What do I think?” and
- “Why do I think this way?”
e.g., If I asked and answered these “reaction” questions about the topic assimilation of immigrants to the U.S., I might create the following main idea statement, which I could then develop in an essay: I think that assimilation has both positive and negative effects because, while it makes life easier within the dominant culture, it also implies that the original culture is of lesser value.
When you apply text information you ask:
- “How does this information relate to the real world?”
e.g., If I asked and answered this “application” question about the topic assimilation, I might create the following main idea statement, which I could then develop in an essay: During the past ten years, a group of recent emigrants has assimilated into the local culture; the process of their assimilation followed certain specific stages.
When you analyze text information you ask:
- “What is the main idea?”
- “What do I want to ‘test’ in the text to see if the main idea is justified?” (supporting ideas, type of information, language), and
- “What pieces of the text relate to my ‘test?'”
e.g., If I asked and answered these “analysis” questions about the topic immigrants to the United States, I might create the following main idea statement, which I could then develop in an essay: Although Lee (2009) states that “segmented assimilation theory asserts that immigrant groups may assimilate into one of many social sectors available in American society, instead of restricting all immigrant groups to adapting into one uniform host society,” other theorists have shown this not to be the case with recent immigrants in certain geographic areas.
When you synthesize information from many texts you ask:
- “What information is similar and different in these texts?,” and
- “What pieces of information fit together to create or support a main idea?”
e.g., If I asked and answered these “synthesis” questions about the topic immigrants to the U.S., I might create the following main idea statement, which I could then develop by using examples and information from many text articles as evidence to support my idea: Immigrants who came to the United States during the immigration waves in the early to mid 20th century traditionally learned English as the first step toward assimilation, a process that was supported by educators. Now, both immigrant groups and educators are more focused on cultural pluralism than assimilation, as can be seen in educators’ support of bilingual education. However, although bilingual education heightens the child’s reasoning and ability to learn, it may ultimately hinder the child’s sense of security within the dominant culture if that culture does not value cultural pluralism as a whole.
Summary
Critical reading involves asking and answering these types of questions in order to find out how the information “works” as opposed to just accepting and presenting the information that you read in a text. Critical writing involves recording your insights into these questions and offering your own interpretation of a concept or issue, based on the meaning you create from those insights.
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