Main idea of a short academic text (SAT)

Reading Comprehension

CCSS RI.11-12.2CCSS RL.11-12.2England: SAT Reading and Writing (Central Ideas and Details)England: ACT Reading

Objective and success criteria

Students will: Main idea of a short academic text (SAT).

I can answer questions on today's skill on my own, without help.
I can explain each step and say why it works.
I can check my answer and spot a mistake.

Before and after

Needs first: Central ideas in complex texts; Why did the author include this detail?

Leads to: the next skill in this area.

Materials: A short text or extract (one copy each), Highlighters, Question cards, Mini whiteboards, A short model text on the board, Printed student sheet (below).

Warm-up · 4 min

Quick retrieval from earlier learning (Central ideas in complex texts; Why did the author include this detail?). Students answer on mini whiteboards.
Show answers together and note who needs support in the main task.

Is the proposed answer correct? The new bridge was hailed as a triumph of engineering. Within a week, however, it had begun to sway alarmingly in the wind, and engineers closed it for repairs. Why does the writer mention that the bridge was 'hailed as a triumph'? → to contrast early praise with the problems that followed (yes, it is correct / no, it is not correct) → yes, it is correctPrompt: Ask: what would be lost if this detail were removed?
The invention of refrigerated shipping in the late 1800s did more than keep food fresh. It allowed meat from Argentina and New Zealand to reach European tables, reshaping farming, trade and diets across continents. Which choice best states the central idea? (Ships were slow in the 1800s. / Food spoils without refrigeration. / Refrigerated shipping had wide-reaching effects on global trade and food. / Argentina produces meat.) → Refrigerated shipping had wide-reaching effects on global trade and food.Prompt: What is the WHOLE text mostly about, not just one part?
Is the proposed answer correct? Many people assume that deserts are lifeless. In fact, a single square metre of desert soil can contain thousands of tiny organisms. What is the function of the first sentence? → it summarises the text (yes, it is correct / no, it is not correct) → no, it is not correctPrompt: Ask: what would be lost if this detail were removed?

Hook · 3 min

Read the first lines of a short text aloud and ask what students predict will happen and why.
Share the objective: Main idea of a short academic text (SAT). Read the success criteria together.

I do: model it · 7 min

Work through the example out loud, saying why you do each step, not just what you do.
Example: For decades, researchers assumed that octopuses, being solitary, had little need for complex social behaviour. However, divers off the coast of Australia have recorded groups of gloomy octopuses living together, sharing dens and even signalling to one another by changing colour. These observations suggest that octopus social life may be richer than once believed. Which choice best states the main idea of the text?
Step 1: The main idea is the central claim the whole text supports; details are evidence for it.
Step 2: The text sets up an old assumption and presents evidence against it.
Step 3: So the answer is: New observations challenge the view that octopuses have little social behaviour.
Answer: New observations challenge the view that octopuses have little social behaviour.
Pause after each step and ask a student to say what comes next.

We do: guided practice · 6 min

Do these together. Students try each step on whiteboards before you reveal it.
Use the hints as prompts rather than giving the answer.

Archaeologists once believed that the people of a Neolithic village abandoned it because of war. New analysis of seeds and pollen in the soil, however, shows a sudden drop in rainfall at the time. The researchers now argue that drought, not conflict, is the more likely explanation. Which choice best states the main idea of the text? (Neolithic villages were often at war. / New environmental evidence suggests drought rather than war led people to leave the village. / Archaeologists dislike changing their minds. / Pollen can survive for thousands of years.) → New environmental evidence suggests drought rather than war led people to leave the village.Prompt: Which choice covers the WHOLE text, not just one detail?
Before the printing press, books were copied by hand, which could take months. Printing made books far cheaper and faster to produce, helping ideas spread across Europe. Which choice best states the main idea of the text? (Copying by hand was a popular hobby. / The printing press made books cheaper and helped ideas spread. / Books took months to read. / Europe had few books.) → The printing press made books cheaper and helped ideas spread.Prompt: What is the text mostly about?

You do: independent practice · 7 min

Students work on the student sheet. Circulate and check the first two answers of every student early.
Students who finish: write a question of their own for a partner, with the answer.

The 6 questions are on the student sheet below, with answers in the key.

Exit ticket · 3 min

Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.

Archaeologists once believed that the people of a Neolithic village abandoned it because of war. New analysis of seeds and pollen in the soil, however, shows a sudden drop in rainfall at the time. The researchers now argue that drought, not conflict, is the more likely explanation. Which choice best states the main idea of the text? (Archaeologists dislike changing their minds. / Pollen can survive for thousands of years. / Neolithic villages were often at war. / New environmental evidence suggests drought rather than war led people to leave the village.) → New environmental evidence suggests drought rather than war led people to leave the village.Prompt: Which choice covers the WHOLE text, not just one detail?
Some species of trees share nutrients through underground networks of fungi. Through these networks, larger trees can pass sugars to young seedlings growing in the shade. Which choice best states the main idea of the text? (Fungi are a type of tree. / Sugar is bad for trees. / Seedlings prefer the shade. / Trees can share nutrients with each other through fungal networks.) → Trees can share nutrients with each other through fungal networks.Prompt: What is the text mostly about?

Watch out for

Answering from memory or opinion instead of evidence in the text.
Copying a long quote without explaining what it shows.

Support and stretch

Support

Review first: Central ideas in complex texts.
Use concrete materials: a short text or extract (one copy each).
Give the first step of each question, or a partly worked example to finish.
Pair with a confident partner for the guided practice.

Stretch

Explain a common mistake in writing and how to fix it.
Write a word problem that uses today's skill, then solve a partner's.

Homework and more practice

Free online practice with hints and printable worksheets for this skill: eurekami.com/english/grade-11.

Free lesson plan from eurekami.com/lesson-plan-builder

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Main idea of a short academic text (SAT)

Name

Date

Score/ 6

1
Question 1
The composer Florence Price became the first Black woman to have a symphony performed by a major American orchestra, in 1933. Her music blended European classical forms with African American spirituals. Which choice best states the main idea of the text?
- A. Florence Price was a groundbreaking composer who combined different musical traditions.
- B. Orchestras only played European music.
- C. Florence Price was a famous singer.
- D. Symphonies are very long.

Two Views on AI and Art

Text 1. When photography was invented, some painters declared that art was dead. Instead, painting changed: freed from the need to record reality, artists explored colour, emotion and abstraction. Image-generating AI may play a similar role. Used as a tool, it can help people sketch ideas quickly, test compositions and bring visual thinking to those who never trained as artists. The question is not whether AI will end art, but what new kinds of art people will make with it. Text 2. Comparisons with photography are tempting but misleading. A camera records the world; many AI image tools are trained on millions of existing artworks, often without their creators' permission or payment. Until artists can choose whether their work is used, and are fairly credited, it is hard to call this simply a new tool. The problem is not the technology itself but the way it has been built.

2
Question 2
Read "Two Views on AI and Art". Which choice best states the main idea of Text 1?
- A. Like photography, AI may change art rather than end it, acting as a new creative tool.
- B. AI will soon replace all artists.
- C. Only trained artists should make images.
- D. Photography destroyed painting.

Beavers Come Home

Four hundred years after they were hunted to extinction in Britain, beavers are back. Small populations now live wild in parts of Scotland and England, and several other European countries have reintroduced them too. Ecologists describe beavers as "ecosystem engineers". By building dams, they create ponds and wetlands that slow the flow of water, trap sediment and provide homes for insects, amphibians and birds. In one Devon study, the amount of water flowing downstream during heavy rain was noticeably lower below beaver dams than above them, suggesting that dams can help reduce flooding. Not everyone is delighted. Some farmers report flooded fields and felled trees, and they worry about the cost. Their concerns are real, and schemes in some areas now compensate landowners or move beavers whose dams cause serious damage. Supporters argue that the benefits outweigh the costs. Wetlands created by beavers can store water during droughts, improve water quality and attract visitors. Yet researchers caution that results vary from river to river, and long-term data are still limited. What is clear is that the return of beavers forces us to ask a broader question: how much room are we willing to make for wild animals in a crowded country?

3
Question 3
Read "Beavers Come Home". Which choice best states the main idea of the text?
- A. Beavers should be removed from Britain again.
- B. Reintroduced beavers bring environmental benefits but also costs, and the full picture is still being studied.
- C. Farmers are always opposed to wildlife.
- D. Beavers only live in Scotland.

4
Question 4
The poet Lucille Clifton wrote in short lines, often without capital letters, using everyday words. Some readers have mistaken this style for simplicity. Many critics argue that her plain language was a deliberate choice that made complex ideas about family, history and survival feel immediate and personal. Which choice best states the main idea of the text?
- A. Clifton never used capital letters in any of her letters.
- B. Short lines are easier to write than long ones.
- C. Critics never agree about poetry.
- D. Clifton's plain style, sometimes mistaken for simplicity, is better understood as a deliberate and powerful choice.
5
Question 5
Before the printing press, books were copied by hand, which could take months. Printing made books far cheaper and faster to produce, helping ideas spread across Europe. Which choice best states the main idea of the text?
- A. Copying by hand was a popular hobby.
- B. Europe had few books.
- C. Books took months to read.
- D. The printing press made books cheaper and helped ideas spread.
6
Question 6
For decades, researchers assumed that octopuses, being solitary, had little need for complex social behaviour. However, divers off the coast of Australia have recorded groups of gloomy octopuses living together, sharing dens and even signalling to one another by changing colour. These observations suggest that octopus social life may be richer than once believed. Which choice best states the main idea of the text?
- A. New observations challenge the view that octopuses have little social behaviour.
- B. Octopuses change colour to hide from predators.
- C. Divers have discovered a new species of octopus.
- D. Australia has more octopuses than any other country.

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Answer key: Main idea of a short academic text (SAT)

1. A. Florence Price was a groundbreaking composer who combined different musical traditions.
2. A. Like photography, AI may change art rather than end it, acting as a new creative tool.
3. B. Reintroduced beavers bring environmental benefits but also costs, and the full picture is still being studied.
4. D. Clifton's plain style, sometimes mistaken for simplicity, is better understood as a deliberate and powerful choice.
5. D. The printing press made books cheaper and helped ideas spread.
6. A. New observations challenge the view that octopuses have little social behaviour.