INVESTIGATION 2 OF 6

Build a paragraph that goes somewhere

Reorder and revise sentences so that each advances a paragraph’s controlling idea.

Why learn this? Readers follow an explanation more easily when its sentences answer a developing question.

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Quick recap: A paragraph is a unit of thought, not a required number of sentences. A controlling idea gives its details a shared job.

Choose your task depth

Choose either at any time. Your drafts stay with you.

1. Try — read before judging

Original fictional reporting notes about the library hall. Treat each numbered line as a movable sentence. You may remove irrelevant details from the draft while keeping the source notes intact.

A first-time visitor cannot tell whether a study seat is available until entering the hall.
The library bought its blue curtains five years ago.
A volunteer counted people who entered and immediately left.
During Tuesday’s 3–4 p.m. class visit, eight seats were available to other visitors.
A sign at the door could show the number of seats currently available.
The count alone does not reveal why anyone left.
The library should test a seat-availability sign before describing it as a solution.

Go directly to the workbench

2. Predict — make a provisional choice

Which sentence would you remove first, and what controlling idea would justify that choice? 0 / 16,000 characters · length is a storage limit, not a quality score

3. Experiment — test your reading

Load the passage and arrange a problem → evidence → limitation → proposal sequence.
Save the arrangement as your baseline. Remove the distracting sentence and add transitions only where the relationship needs explaining.
Give every remaining sentence a short job label in your commentary. If two jobs conflict, split the paragraph.

Your structure editing table

Load the passage, then move paragraphs with the buttons. You can edit the text below. Newlines separate movable pieces.

Working draft / artifact 0 / 16,000 characters · length is a storage limit, not a quality score

Comparison draft

Save your first version here before revising. It will remain unchanged while you edit the working draft.

Revision commentary: what changed, why, and what remains uncertain? 0 / 16,000 characters · length is a storage limit, not a quality score

4. Understand — connect choice and effect

A paragraph works when its sentences develop a shared question. In this packet, the question might be: What should the library try to help visitors plan? The curtain’s color does not help answer that question unless you establish a relevant connection. Removing it is a reasoning choice, not merely a way to shorten the paragraph.

Try a reverse outline: give each sentence a job after drafting. For example, “names the access problem,” “reports an observation,” “limits what that observation means,” and “proposes a test.” If a sentence has no job, revise or remove it. If it introduces a new question that needs its own evidence, begin another paragraph. No universal rule requires five sentences or places the main claim first in every genre.

Order changes emphasis. A problem-led paragraph may begin with visitors’ difficulty. A limitation-led paragraph may begin by acknowledging that the departure count cannot explain motives. Both can be coherent. The second may suit an audience inclined to overinterpret the count; the first may suit a reader trying to understand the service problem.

Transitions should name relationships that already make sense. “Therefore” cannot turn an unrelated observation into a cause. Here the log supports a reason to investigate, not proof that a sign will work. Read the paragraph once without its connectors: if the reasoning collapses, add the missing explanation rather than more transition words.

Controlling idea: The central point that makes the details of a paragraph belong together.
Transition: Language that signals a relationship, such as contrast, consequence or example.

Worked example — a possible revision, not the only answer

Before

There are blue curtains. People leave the hall. Also, signs are useful.

After

Visitors cannot check seating before entering the hall. A volunteer observed some leaving immediately, although the count does not establish why. A seat-availability sign would therefore be a reasonable idea to test, rather than a proven solution.

The evidence is connected to a limited proposal. “Although” marks a limitation; “therefore” introduces the inference. The paragraph does not claim the sign will solve every access problem.

Return to your workbench and reconsider a choice

5. Apply — make something and try a new case

Your main artifact

Write a focused 130–180-word paragraph, then label each sentence as claim, evidence, explanation, limitation or next step.

Keep your artifact in the working draft above. Suggested lengths help you plan; they do not measure quality.

Unfamiliar passage

The club’s signup sheet collected names but not preferred times. Attendance was low at the first meeting. The room has recently been painted. Several students later asked whether a lunchtime meeting was possible.

Create a coherent paragraph proposing a next step. Explain one removed detail and avoid claiming to know why all absent students stayed away. 0 / 16,000 characters · length is a storage limit, not a quality score

0 saved attempt(s).

6. Continue — record work without claiming mastery

Completion means you worked through this investigation. Your interpretation and writing still need judgment using the project rubric; no automatic proficiency score is awarded.

Continue: Make evidence do a job

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