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Grade 6 · English language arts · 30 minutes

Unit 1 · Reading closely · Lesson 2 of 2

Central Idea and the Tool Library

Explain how a paragraph develops a central idea instead of listing unrelated facts.

Mr. S Teaches · Original starter mini-lesson · MS6-ELA-02

Learning objective

Identify a central idea and explain the role of one paragraph in an informational text.

Before you begin

  • Topic versus main idea

Gather your materials

  • Paper or a word processor
  • The original text and fictional source cards supplied in this lesson

Language to know

central idea
The main understanding an informational text develops.
supporting detail
Information that explains or supports an idea.
structure
The arrangement of parts in a text.

Understand the concept

Original informational text: “A neighborhood tool library lends equipment that residents may need only occasionally. Members borrow drills, ladders and garden tools instead of buying each item. Volunteers inspect returned tools and record repairs. This work keeps damaged equipment from being lent again. Borrowing also requires planning. A popular ladder may be reserved for several days, so members check availability before starting a project.” The first paragraph introduces shared access, the second explains maintenance, and the third presents a practical limit. A central idea should account for all three, not just one example.

Teach it step by step

  1. Label the three paragraph roles: introduction, maintenance and planning limit.
  2. Ask what every section contributes to understanding how the service works.
  3. Draft a central idea that includes both access and responsibility.
  4. Choose two relevant details and explain their connection rather than copying them in a list.
  5. Write a one-sentence objective summary and remove personal judgments.

Make the thinking visible

Worked example or model response

Central idea: A tool library makes occasional equipment available through a system that requires maintenance and planning. The inspection paragraph shows how shared access depends on keeping the equipment usable; it is not a separate unrelated topic.

Guided practice

Explain how the ladder reservation detail develops the text’s practical limit. Compare it with the unsupported statement “Every resident saves money.”

Independent practice

Write a central idea, a two-detail explanation and a brief summary. Then explain what understanding would be lost if the inspection paragraph were removed.

Quick assessment

Is “The library lends ladders” broad enough to express the central idea? Why?

Answer key & assessment criteria

Answers and teaching guidance

  1. Guided: Reservations show why borrowing requires advance planning. The passage does not give costs or say every resident saves money.
  2. Independent criteria: Central idea includes how shared access works; accurate maintenance and planning evidence; explanation recognizes that removing inspection loses the safety/condition process.
  3. Quick check: No. It is one supporting detail and leaves out the larger system and responsibilities.

Look for: Look for an explanation of the choices, not only a final answer. Accept alternative interpretations when the learner supports them with precise textual evidence.

Make it work for your learner

More support

Color-code each paragraph’s function and provide a central-idea sentence frame.

Extension challenge

Reorder the last two paragraphs and discuss what changes in emphasis without changing facts.

Selected contributions · Official sources

Standards connections

Contributes to Common Core standard

RI.6.2

Common Core · Grade 6

Explain a central idea through relevant details and an objective summary.

Read the official standard ↗

This short original text practices selected analysis skills; it does not establish the full grade-band reading-complexity or independent-reading expectations.

Source and mapping checked 2026-11-04. This mini-lesson contributes selected skills; it does not claim full attainment.

Contributes to Common Core standard

RI.6.5

Common Core · Grade 6

Explain how a paragraph contributes to the whole explanation.

Read the official standard ↗

This short original text practices selected analysis skills; it does not establish the full grade-band reading-complexity or independent-reading expectations.

Source and mapping checked 2026-11-04. This mini-lesson contributes selected skills; it does not claim full attainment.