A. Literacy Connections and Applications / C. Comprehension: Understanding and Responding to Texts · Understanding and Responding to TextsMain Idea, Important Details and Comparing Texts
C2.6 C3.3 C1.3About 40 minutes
Learning goals- I can say the main idea of a short text in one sentence.
- I can tell the important details in the right order.
- I can tell how two texts or two characters are the same and different.
Words to know
main idea
What a text is mostly about, said in one sentence.
important detail
A fact or event that helps explain the main idea. You need it to understand the text.
sequence
The order that things happen in.
summarize
To tell the main idea and the most important details in a few sentences.
compare
To tell how things are the same (alike).
contrast
To tell how things are different.
Remember from Grade 1
In Grade 1 you retold stories: beginning, middle and end. In Grade 2 you will be choosier! You will find the main idea, pick only the important details, and put them in order. You will also compare and contrast texts.
The main idea is the umbrella
Think of an umbrella. The main idea is the umbrella: it covers the whole text. The important details are the raindrops underneath it. They all fit under the main idea.
To find the main idea, ask: "What is this text mostly about?" Then say it in one sentence.
An interesting detail is not always an important one. Ask: "Do I need this detail to understand the main idea?"
Read-aloud 1: From Seed to Pumpkin
A big orange pumpkin starts as a tiny seed.
In late spring, a farmer plants pumpkin seeds in warm soil. Soon a little green sprout pushes up. The farmer's dog likes to nap in the shade nearby.
The sprout grows into a long vine with big leaves. In summer, yellow flowers open on the vine. Bees visit the flowers.
After a while, a small green pumpkin starts to grow where a flower was. All summer, it grows bigger and bigger.
In the fall, the pumpkin turns orange. Now it is ready to pick!
Worked exampleLet's find the main idea and the important details
What is From Seed to Pumpkin mostly about? Which details are important?
- Ask: What is it mostly about? Every paragraph tells about a pumpkin growing.
- Main idea in one sentence: A pumpkin grows from a tiny seed into a big orange pumpkin.
- Find the important details in order: seed planted → sprout → vine with leaves → yellow flowers → small green pumpkin → orange pumpkin in fall.
- Check each detail: The farmer's dog likes to nap in the shade. Do I need that to understand how a pumpkin grows? No. It is interesting, but not important. Leave it out.
- Summarize: A pumpkin seed is planted in late spring. It sprouts and grows a vine with yellow flowers. A green pumpkin grows where a flower was, and it turns orange in the fall.
Main idea: A pumpkin grows from a tiny seed into a big orange pumpkin. The important details tell each stage in order. The dog detail is not important.
The main idea is the umbrella. The important details fit underneath it. The napping dog is interesting, but not important, so it lands in the puddle!Read-aloud 2: Lily Learns to Skate
Lily had new skates. She wobbled onto the ice at the outdoor rink. Her legs slid out, and bump! She sat down hard.
Her big brother Ben held out a hockey stick. "Hold on," he said. Lily held the stick and took small steps. Her red toque kept falling over her eyes.
She fell again. She got up again. Ben showed her how to bend her knees and push with one foot, then the other.
By the time the lights came on, Lily was gliding all by herself. "Look, Ben!" she shouted. "I'm skating!"
Worked exampleLet's sequence and summarize a story
Tell the important events of Lily Learns to Skate in order, then give the main idea.
- First: Lily tries her new skates and falls down.
- Next: Ben lets her hold a hockey stick, and she takes small steps.
- Then: She falls and gets up again. Ben shows her how to bend her knees and push.
- Finally: Lily skates all by herself.
- Not important: her toque falling over her eyes (fun, but the story still makes sense without it).
- Main idea: Lily learns to skate by practising and not giving up, with help from her brother.
A good summary has the main idea and the key events in order, and leaves out small details.
Compare and contrast
When we compare, we say how two things are alike. When we contrast, we say how they are different. A chart helps.
| From Seed to Pumpkin | Lily Learns to Skate |
|---|
| Literary or informational? | Informational (true facts) | Literary (a made-up story) |
| Characters? | No main characters, just a farmer | Lily and Ben |
| Setting (when) | Spring, summer and fall | Winter (an outdoor rink) |
| Pattern | Chronological order (stages) | Chronological order (events) |
| Big idea | Things grow and change over time | People grow and learn by practising |
Same and different
Both texts tell things in order and both show change over time: the pumpkin grows, and Lily learns. That is a comparison (alike). One is true facts and one is a story. That is a contrast (different).
Clue words: both, also, same, alike (compare) and but, different, however (contrast).
Just for funThe biggest contest pumpkins can weigh more than 1,000 kilograms. That's about as heavy as a small car! Good luck carrying that one home.
Hands-on activityMain idea umbrella
You need: paper, crayons, a short book or a page from a fact book.
- Draw a big umbrella at the top of the paper. Draw 4 raindrops underneath.
- Read the text with your grown-up.
- Write the main idea on the umbrella in one sentence.
- Write or draw one important detail in each raindrop, in order.
- Find one interesting but not important detail. Draw it off to the side in a puddle! 💧
- Bonus: compare two of your favourite books. Fold a paper in half: Same on one side, Different on the other.
Your turn
1What is the main idea of From Seed to Pumpkin?
A pumpkin grows from a tiny seed into a big orange pumpkin.
2What comes right after the yellow flowers open?
A small green pumpkin starts to grow where a flower was.
3When does the pumpkin turn orange?
4Why is the sentence about the farmer's dog not an important detail?
Because you don't need it to understand how a pumpkin grows. It is about the dog, not the pumpkin.
5Put in order: Lily skates by herself. / Lily falls down. / Ben gives her a hockey stick to hold.
Lily falls down. Ben gives her a hockey stick to hold. Lily skates by herself.
6Name one way the two read-alouds are alike.
Any one: both use chronological order; both show change over time (growing / learning); both happen outside in Canadian seasons.
7Name one way they are different.
Any one: one is informational and one is literary; one has characters (Lily and Ben) and one doesn't; one is about a plant and one is about a person; different seasons.
More practice: warm-up
What a text is mostly about, in one sentence.
The order things happen in.
3What colour are pumpkin flowers in the text?
4Who helped Lily learn to skate?
5Which word means "tell how things are different": compare or contrast?
More practice: on your own
1What is the main idea of Lily Learns to Skate?
Lily learns to skate by practising and not giving up, with her brother's help.
2Is Her red toque kept falling over her eyes an important detail? Explain.
Not very important. It is fun and helps us picture her, but the story still makes sense without it. It does not change what happens.
3Write a 2-sentence summary of From Seed to Pumpkin.
Example: A pumpkin seed is planted in late spring and grows into a vine with yellow flowers. A green pumpkin grows where a flower was and turns orange in the fall.
4What clue words in the skating story show time passing?
Examples: By the time the lights came on (it got dark, time passed); She fell again. She got up again. (repeating shows it took many tries).
5Compare Lily and Chickadee from the fable in Lesson 1. How are they alike? How are they different?
Alike: both learn something by the end. Different: Lily learns a skill (skating) by practising; Chickadee learns a lesson (plan ahead) after being hungry. Lily is a person; Chickadee is a talking bird.
Challenge
1A friend says the main idea of the pumpkin text is "Bees visit flowers." Why is that not the main idea?
It is only one detail from one part. The whole text is about how a pumpkin grows from seed to orange pumpkin. The main idea must cover all of the text.
2Why do both texts use chronological order, even though one is a story and one is a fact text?
Both tell about something that changes over time. Time order is the clearest way to show change step by step.
3Give one way Lily is like the pumpkin. (Think about the big ideas!)
Both grow and change over time. The pumpkin gets bigger stage by stage, and Lily gets better at skating step by step. Both need time and care (sun and water / practice and help).
Quiz
2. What is the first stage of a pumpkin?
3. Which detail is least important in From Seed to Pumpkin?
4. Which is the best summary of Lily Learns to Skate?
5. Which word is a compare clue word (how things are alike)?
6. How are the two read-alouds different?
Big idea: Grade 2 readers identify the main idea and relate important details in sequence (C2.6), and analyze simple literary and informational texts by sequencing information and comparing and contrasting simple elements such as characters, settings and form (C3.3).
How to help at home:
- After reading, ask: "What was it mostly about? Tell me in one sentence."
- Ask for retells using first, next, then, finally, and gently trim extra details.
- Compare two books by the same author, or a book and its movie: "What's the same? What's different?"
Common difficulties:
- Choosing a favourite detail as the main idea. Ask, "Does that cover the whole text?"
- Retelling every single thing. Summaries should be short. Use the umbrella activity.
- Only giving differences. Encourage "Both ___" sentences too.
Fact note: pumpkins have separate male and female flowers and need bees to carry pollen between them; the text simplifies this to "a small green pumpkin starts to grow where a flower was."