You will learn
- Recognise supporting details.
- Find facts and examples.
- Tell important details from extra ones.
- Use details to explain the main idea.
Version 0.2 · expanded edition · built from cited public sources Content is based on the official frameworks and sources listed under Sources and standards. No official endorsement is claimed. Written in the style of common primary school assessments. No exam result is promised.
Student lesson
- Details prove or explain the main idea.
- Look for facts, examples and numbers.
- Skip details that do not fit.
- Match each detail to the main idea.
Words to know
a fact or example that explains the main idea
something that can be proved true
one case that shows an idea
connected to the topic
1. Discover: The baobab tree
The baobab is a remarkable tree of Africa. Its thick trunk can store water for the dry season. Its fruit, called monkey bread, is rich in vitamin C. Some baobabs live for hundreds of years. Many people call it the tree of life.
Think: Which facts show that the baobab is remarkable?
2. Understand: Details that support
Idea 1: What are supporting details?
A supporting detail is a fact or example that explains the main idea. Main idea: the baobab is remarkable.
Idea 2: Find them
Details: the trunk stores water; the fruit has vitamin C; some trees live hundreds of years.
Idea 3: Relevant
A detail must be relevant. A fact about a bicycle would not support this idea.
3. Worked examples
Example 1 (I show you): Main idea
What is the main idea?
- First sentence.
Answer: the baobab is a remarkable tree
Example 2 (We do it together): Detail
Name a supporting detail.
- A fact.
Answer: its trunk stores water
Example 3 (You try): Relevant
Is a fact about bicycles relevant?
Show the steps and answer
- Does it fit?
Answer: no
Did you know?
Baobab trunks can be many metres wide, and some are hollow enough for people to shelter inside.
Why this matters
Details help you prove and explain an idea.
4. Explore: Detail chart
Collect details.
- Choose a main idea.
- Find three facts.
- Check they are relevant.
- Write them in a chart.
Think about it: what did you notice?
You can find supporting details.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- The main idea is ___.
- One fact is ___.
- An example is ___.
- This supports the idea because ___.
Guided practice
Question 1. A fact that explains the main idea is a ___ detail.
supporting
Question 2. Something that can be proved true is a ___.
fact
Question 3. One case that shows an idea is an ___.
example
Independent practice
Level 1: Start
- A fact that explains the main idea is a ___ detail.
- Something that can be proved true is a ___.
- One case that shows an idea is an ___.
- Connected to the topic means ___.
- The baobab fruit is called monkey ___.
Level 2: Grow
- What does the trunk store?
- What vitamin is in the fruit?
- How long can baobabs live?
Level 3: Stretch
- Must details be relevant?
- Are examples details?
- Do details support main ideas?
Answers are in the answer key below. Try first, then check.
6. Apply: English in everyday life
Find three details that support a main idea in a nonfiction page.
Show a sample answer
three details
Another one. List three supporting details from a nonfiction page and the main idea they support.
Show a sample answer
a completed task
7. Common mistakes
Fix: Slow down and check your work.
Fix: Study the example first, then try.
8. Lesson summary and revision card
- I can recognise supporting details.
- I can find facts and examples.
- I can tell important details from extra ones.
- I can use details to explain the main idea.
9. Check and master
Answer all 14 questions. You will see feedback after each one.
Your result appears here after you answer every question.
10. Key takeaways
- Details prove or explain the main idea.
- Look for facts, examples and numbers.
- Skip details that do not fit.
- Match each detail to the main idea.
11. Next lesson
Next lesson: Text features. Keep going with the next idea in this course.
Exam practice
These questions are written in the style of common school and international primary assessments. Try them on your own, without looking back. Then check your answers in the marking guide. The marks are shown in brackets.
- What is a supporting detail? [1 mark]
- Give two supporting details about the baobab. [2 marks]
- What does relevant mean? [1 mark]
- Why is a fact about bicycles not relevant to baobabs? [1 mark]
- Explain how to find supporting details. [3 marks]
Total: 8 marks.
Marking guide and model answers
- a fact or example that explains the main idea [1]
- trunk stores water [1]; fruit vitamin C / lives long [1]
- connected to the topic [1]
- it does not support the main idea [1]
- know the main idea [1]; look for relevant facts and examples [1]; leave out unrelated information [1]
Score guide: 7 to 8 = secure. 5 to 6 = nearly there, revise the parts you missed. Under 5 = work through the lesson again with a grown-up.
Printable worksheet
- A fact that explains the main idea is a ___ detail.
- Something that can be proved true is a ___.
- One case that shows an idea is an ___.
- Connected to the topic means ___.
- The baobab fruit is called monkey ___.
- What does the trunk store?
- What vitamin is in the fruit?
- How long can baobabs live?
- Must details be relevant?
- Are examples details?
Homework
List three supporting details from a nonfiction page and the main idea they support.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. A fact that explains the main idea is a ___ detail. | supporting | 1 |
| 2. Something that can be proved true is a ___. | fact | 1 |
| 3. One case that shows an idea is an ___. | example | 1 |
| 4. Connected to the topic means ___. | relevant | 1 |
| 5. The baobab fruit is called monkey ___. | bread | 1 |
| 6. What does the trunk store? | water | 1 |
| 7. What vitamin is in the fruit? | vitamin C | 1 |
| 8. How long can baobabs live? | hundreds of years | 1 |
| 9. Must details be relevant? | yes | 1 |
| 10. Are examples details? | yes | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 supporting; 2 fact; 3 example; 4 relevant; 5 bread. Level 2: 1 water; 2 vitamin C; 3 hundreds of years. Level 3: 1 yes; 2 yes; 3 yes.
Quiz answers: 1 B, 2 C, 3 A, 4 B, 5 C, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 B, Challenge 2 C.
Mastery and remediation
| Objective | Bronze (Developing) | Silver (Proficient) | Gold (Advanced) |
|---|---|---|---|
| O1 Recognise supporting details | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O2 Find facts and examples | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O3 Tell important details from extra ones | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O4 Use details to explain the main idea | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
Courseversity badge thresholds (overall quiz score): Gold = 90–100%; Silver = 80–89.9%; Bronze = 70–79.9%. A badge is never a full record of progress.
If a learner struggles
- Find the misconception: Rushing without checking. Slow down and check your work.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Re-read the examples slowly and use the sentence frames.
- Guided practice: work through one example together and let the learner try the next one.
- Reassess: use the quiz again or the worksheet.
- Move on when the learner shows Silver-level evidence independently.
For parents and guardians
In this lesson your child practises a key Grade 3 English skill with clear examples and a quiz. You do not need to be an expert to help.
- Listen while your child explains the idea.
- Ask for one new example.
- Praise effort and careful work.
- Ask “how do you know?” after each answer, and listen.
- Praise effort, not only right answers. Mistakes are how we learn.
- Ten to fifteen minutes a day is better than one long session.
Teacher package
1–5. Objectives, prerequisites, materials, preparation, duration
Lesson objectives. Learners will: recognise supporting details; find facts and examples; tell important details from extra ones; use details to explain the main idea.
Prerequisite knowledge. Main ideas.
Materials. Chart paper or board, pencils, picture or word cards, a reading book if available. Low-resource options: use chalk or charcoal on a board or wall, drawings in the sand, and objects from the classroom instead of printed materials.
Preparation. Write the key words and examples on the board or on cards before the lesson.
Suggested duration. 45–60 minutes. It can be split into two shorter sessions.
6–9. Teaching procedure, explanation notes, guided and independent activities
Introduction (5 min). Introduce the idea with the opening example.
Explanation (10 min). Teach the key words.
Guided activity (10 min). Practise together.
Independent activity (10 min). Check understanding with the quiz.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. What is the key idea? Can I give my own example?
Teacher explanation notes. Move from the spoken word to pictures and then to print. Read aloud often, point to the words, and let learners hear and say before they read and write.
10–12. Differentiation, formative assessment, common misconceptions
Support. Use the sentence frames and work with a partner. Extension. Create a harder example of your own.
Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.
Misconceptions. Rushing without checking. Slow down and check your work.
13–15. Assessment questions, answer keys, marking scheme
Use the quiz, the 8-mark exam practice and the worksheet on this page. All answers and marking guides are in the answer sections above. Re-check every answer before use.
16–19. Remediation, enrichment, homework, teacher reflection
Remediation. Re-read the examples slowly and use the sentence frames. Enrichment. Make up your own example and teach it to someone at home. Homework. See above.
Teacher reflection. After teaching, record: which ideas learners understood; which misconceptions occurred; which activities worked; which learners need more practice; and what to improve next time.
Sources and standards
This lesson is based on the sources below, and no official endorsement is claimed. Reference starting points: Common Core State Standards for English Language Arts, Cambridge Primary and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.
Official standards for this topic area. Common Core State Standards for English Language Arts (official site): Grade 3 » Reading: Foundational Skills; Grade 3 » Reading: Literature; Grade 3 » Reading: Informational Text. These pages list the standards that cover this topic area; read them alongside the lesson.
Research used to shape this lesson. Common Core RI.3.2 and RI.3.1; Cambridge Primary English Stage 3 (reading non-fiction). These sources informed the lesson.