Architecture of Grace
Social Studies · A More Perfect Union

The Interior — Social Studies

A More Perfect Union · Activity 4 — The Main Idea. A short read, four answers, four sizes — or print it and use a pencil, both count.

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Social Studies · Activity 4

The Main Idea

Every wrong answer here is wrong in a nameable way: too small, too big, or not in the text. Learn the three traps and the main idea starts finding you.

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No score is kept. No points, no streak, no ranking — the only number anyone writes down is the one your teacher writes down, standing next to you.

Show me one first

This one is nobody's answer — it is only here to show the moves before you touch yours. Watching it is instruction, never a trial, and it counts toward nothing.

The blacksmith shop opened before dawn. Farmers lined up with broken plows. By noon the coal bin was half empty, and the hammering never stopped until dark.
Try the sizes. Too small: the coal bin was half empty — one sentence, one brick. Too big: blacksmiths were important in history — bigger than this shop.
Just right: the shop was busy from dark to dark. Every sentence works for that one.

Now number 1 is yours. The hint button is there the whole time, and using it is part of the lesson.

Read each passage. Then write its main idea in your own words — one sentence that every other sentence is working for.

  1. 1Under the Articles of Confederation, Congress could not collect taxes — it could only ask the states for money. It could not force anyone to follow its laws. When farmers in Massachusetts rose up in protest, the government had no army to send.Main idea, in your own words:
  2. 2At the convention, big states wanted votes in Congress counted by population. Small states wanted every state to count the same. The Great Compromise gave each side half: a House based on population, and a Senate with two seats for every state.Main idea, in your own words:
  3. 3The Constitution splits power three ways: Congress writes the laws, the president carries them out, and the courts judge them. Each branch can block the others. The writers wanted no single branch — and no single person — to hold all the power.Main idea, in your own words:
  4. 4In 1803 France offered to sell the entire Louisiana Territory for fifteen million dollars. Jefferson worried that the Constitution did not clearly allow such a purchase — but the chance was too big to miss. With one signature, the country doubled in size.Main idea, in your own words:
  5. 5Before the canal, moving a ton of flour from the Great Lakes to New York City cost about a hundred dollars and took weeks by wagon. After 1825, the same trip cost under ten dollars by water. Farmers grew richer, the city boomed, and other states scrambled to dig canals of their own.Main idea, in your own words:
  6. 6The Underground Railroad was not under the ground, and it was not a railroad. It was a chain of people — Black and white, free and enslaved — who hid travelers escaping slavery and guided them north, one dangerous stretch at a time. Guides like Harriet Tubman went back again and again.Summarize it in one sentence:
  7. 7By the 1850s the North and South worked differently. The North built factories, railroads, and fast-growing cities. The South grew cotton with the forced labor of nearly four million enslaved people. Each region wanted laws that fit its own way of making a living — and every vote in Congress became a tug-of-war.Summarize it in one sentence:
  8. 8Lincoln spoke at Gettysburg for barely two minutes. He did not name a single general or battle. Instead he told the crowd what the war was for: proving that a government of the people, by the people, for the people could survive. The short speech became one of the most famous in American history.Summarize it in one sentence:
How confident are you with this skill?

There is no right answer here. It only tells your teacher where to start next time.

For the teacher — this device only

One probe row, built from what happened on this screen. Nothing is sent anywhere — copy it into the Goal Builder yourself, or print this page. Independent means answered with no hints; supported means answered after a hint. Both are real evidence and neither is a grade.

Date
—
Skill
Identify the main idea or best summary of an informational passage
Measure
Trials (x of y)
Independent
0 of 8
Supported
0 of 8
Hints used
0
Confidence
—

Passages 1–5 ask for the main idea; 6–8 ask for the best summary — the same muscle at the next weight. Every option set carries the same four sizes: just right, a detail, too big, and not-said, so the wrong-answer feedback can teach the trap by name. Set 2 and Set 3 are the same eight jobs on different passages from the same era.

Three doors on this page: Show me one first is a worked example and counts toward nothing; the eight items are the walk; and a finished set opens One more, if you want it — a stretch with two tries and the thinking shown warmly either way. Whether each door was used rides along when a probe row is copied or sent — as information, never as a score.

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