Main Idea
Supporting Ideas
Details
To understand the main idea, you need to understand the topic.
The topic is who or what it is about. You also need to
understand the events. The events are what is happening.
On a reading test, you
often see the same
question. The question is,
“What is the main idea?”
Every sentence in a paragraph
communicates an idea.
All of these sentences become
part of a larger idea.
In other words, these smaller
ideas become supporting ideas
or details to the main idea of
the paragraph.
The supporting ideas give more information about the main
idea. The details give more information about the supporting
ideas.
Practice:
Read this paragraph. What is the main idea?
Being a safe driver takes practice. Jordan
wants his driver’s license now. Some of his friends
have driver’s licenses. Jordan wants to drive to
work. Jordan’s father says, “Go to driving school.”
Jordan doesn’t want to go to driving school. He
thinks it is too expensive and not necessary. Jordan
gets his driver’s license and buys a car. He also
buys insurance. He is ready to drive to work! Two
weeks later, Jordan has a car accident. Jordan is
okay, but his car is wrecked. The insurance company
tells Jordan, “You are not a safe driver. You must
pay more money for insurance. You must also go to
driving school. You need more practice.”
First, look at the topic sentence. The topic sentence tells the
main idea of the paragraph. The topic sentence is at the
beginning of the paragraph. It is usually the first sentence, but
not always.
Being a safe driver takes practice.
This sentence tells us this is about.
what
Next, look at the concluding sentence. The concluding
sentence is the last sentence of a paragraph. A good
concluding sentence retells the main idea. Look at the last
sentence:
You need more practice.
Both the topic and concluding sentences have the word
ʻpracticeʼ. We know that ʻpracticeʼ is important to the main
idea.
Supporting Ideas & Details
Look at the same paragraph. Identify the supporting ideas and
the details.
Supporting Ideas Details
The details give more information about the supporting ideas.
These T-charts show the relationship between the supporting
ideas and details.
Supporting Idea Details
Jordan wants his driver’s
license now.
Some of his friends have
driver’s licenses. Jordan
wants to drive to work.
Supporting Idea Details
Jordan’s father says, “Go to
driving school.”
Jordan doesn’t want to go
to driving school. He thinks
it is too expensive and not
necessary.
Supporting Idea Details
Jordan gets his driver’s
license and buys a car.
He also buys insurance. He
is ready to drive to work!
Supporting Idea Details
Two weeks later, Jordan has
a car accident.
Jordan is okay, but his car
is wrecked.
Supporting Idea Details
The insurance company tells
Jordan, “You are not a safe
driver.
You must pay more money
for insurance. You must
also go to driving school.
You need more practice.”
Being a safe driver takes practice. Jordan wants
his driver’s license now. Some of his friends have driver’s
licenses. Jordan wants to drive to work. Jordan’s father
says, “Go to driving school.” Jordan doesn’t want to go to
driving school. He thinks it is too expensive and not
necessary. Jordan gets his driver’s license and buys a car.
He also buys insurance. He is ready to drive to work! Two
weeks later, Jordan has a car accident. Jordan is okay,
but his car is wrecked. The insurance company tells
Jordan, “You are not a safe driver. You must pay more
money for insurance. You must also go to driving school.
You need more practice.”
A well written paragraph has a main idea, supporting ideas
and details.
Sentence = Idea
Larger Idea
Main Idea
Supporting Ideas
Details
Supporting Evidence
Supporting Evidence
Supporting Evidence
Supporting Evidence
Facts and Details
Details and Facts
Facts and Details
Details and Facts
Supporting
Supporting
Supporting
Supporting
Main
Idea
Details
Details Details Details
Conclusion
The main idea is who it is about and what is happening. The
topic sentence and concluding sentence are very important.
These sentences communicate the main idea. It is also
important to know which supporting ideas and details are the
most important. In order to write a good main idea summary
statement, you must include some supporting ideas and details.
Your main idea summary statement must also be in your own
words.
Main Idea Summary
A main idea summary is:
✓
the main idea and the most important supporting ideas
✓
shorter than the original text
✓
written in different words (your own words)
Sample Main Idea Summaries:
Safe drivers must practice. Jordan had a car accident.
He must take driver’s education.
or
Jordan bought a car, but he had an accident. He must
go to school to get more driving practice.
or
Jordan isn’t ready to drive a car. He must practice
and learn how to drive safely.