Review, explain, practice

Study guide: Purpose, Structure and Claims in Nonfiction

Apply distinguish an author’s purpose, match a structural transition, identify a supporting statement’s type, read a graphic qualifier using supplied texts and original responses.

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Ideas to explain in your own words

Useful vocabulary

Distinguish an author’s purpose
Nonfiction purposes differ. A process explanation shows how something works, persuasion argues for a choice, reporting describes an event and a definition clarifies a term.
Match a structural transition
Transitions identify relationships, such as next in time, a contrast, a result or an example. Their meaning should match the connected ideas.
Identify a supporting statement’s type
Different support types answer different questions. A measurement reports an observation, testimony reports a person’s experience, a definition clarifies meaning and an assertion alone supplies no supporting detail.
Read a graphic qualifier
A graphic can be accurate within a stated scope while incomplete for a broader question. Sample size, dates and absent categories affect the claims readers can make.

Watch your reasoning

A worked review example

Aim: explain how a paper hinge bends. Transition: next. Support: bend angle measured 30 degrees. Graphic note: three models only. Distinguish an author’s purpose: The relevant input states: Aim: explain how a paper hinge bends. This fits explain a process. Nonfiction purposes differ. A process explanation shows how something works, persuasion argues for a choice, reporting describes an event and a definition clarifies a term. All factual sentences are not complete process explanations. Match a structural transition: The relevant input states: Transition: next. This fits time sequence. Transitions identify relationships, such as next in time, a contrast, a result or an example. Their meaning should match the connected ideas. However does not mean because. Identify a supporting statement’s type: The relevant input states: Support: bend angle measured 30 degrees. This fits measured observation. Different support types answer different questions. A measurement reports an observation, testimony reports a person’s experience, a definition clarifies meaning and an assertion alone supplies no supporting detail. Calling something proven is not evidence by itself. Read a graphic qualifier: The relevant input states: Graphic note: three models only. This fits small sample. A graphic can be accurate within a stated scope while incomplete for a broader question. Sample size, dates and absent categories affect the claims readers can make. No stated limitation does not mean none could exist.

Make a practice plan

  1. Practice distinguish an author’s purpose: Use the excerpt’s stated aim and actual language. A topic alone does not determine whether the writer explains or persuades.
  2. Practice match a structural transition: Read the exact transition and explain what it tells about the second idea relative to the first.
  3. Practice identify a supporting statement’s type: Read what the statement actually provides. Do not turn one person’s report into a measurement of everyone.
  4. Practice read a graphic qualifier: Read the supplied note alongside the chart. State exactly that limitation without inventing a different defect.
  5. Try the new review before opening its answer. Return to the related lesson if you want more help.