Main Idea
Supporting Details
Main idea mix
100
What is a main idea?
A main idea is the most important part of a paragraph.
100
What is a supporting detail?
Supporting details are details that tell you more about the main idea.
100

Main idea is similar to....

gist

200

Niagara Falls is a beautiful sight in North America.  It is on the Niagara River about halfway between Lake Ontario and Lake Erie. Niagara Falls is on the American and Canadian border. The American Falls is 167 feet high. On the Canadian side, the Horseshoe Falls is 161 feet high.  What is the main idea of the paragraph?

Niagara Falls is a beautiful and enormous sight in North America.

200

Kangaroos protect themselves in many ways. Kangaroos defend themselves with powerful kicks with their hind legs.  If a kangaroo senses danger, they will bang their tail on the ground to warn the others. What is one supporting detail?

If a kangaroo senses danger, they will bang their tail on the ground to warn the others.

or

Kangaroos defend themselves with powerful kicks with their hind legs

200

True or false:

You can use headings, subheadings, pictures, and diagrams to help you find the main idea.

true

300

The Statue of Liberty is visited by thousands of people every year. The Statue of Liberty is a 151 foot statue of a woman holding a book and a torch. It is located on an island in New York Harbor. It was a gift of friendship from the people of France. It has become a universal symbol of freedom.  What is the main idea of the paragraph?

The Statue of Liberty is an important location.

300

Kangaroos are interesting looking animals. They have small front legs and huge hind legs with great big feet.  What is the supporting detail in the paragraph?

small front legs 

huge hind legs 

great big feet

300
The main idea should be written in ____ sentence(s).

one

400

Kangaroos eat grasses, leaves and roots. They only like grass that is green and close to the ground.  What is the main idea of the paragraph?

This is mainly about what kangaroos eat.

400

Kangaroos are mostly night time creatures.  They eat mainly during the night.  They sleep during the day under a shady tree or bush. What is the supporting detail in the paragraph?

They eat mainly at night

They sleep during the day under a shady tree or bush.

400

The main idea will include the following questions:

Who, What (did they do), Where, When, Why, How

500

The Erie Canal changed the way people moved goods and supplies in the mid 1800's.The 363 mile canal connected Albany, New York to Lake Erie in Buffalo for the first time. When the canal opened in 1825, building supplies and goods could be transported quickly and cheaply across New York State. Canal boats carried people and supplies the 363 miles. What is the main idea of the paragraph?

The Erie Canal changed the way people moved goods and supplies in the mid 1800's.

500

Kangaroos usually have only one baby at a time. Kangaroo babies are called joeys. Joeys stay safe in their mother's pouch.  What is the supporting detail?

Kangaroo babies are called joeys.

Joeys stay safe in their mother's pouch.

500

True or False:

The main idea should include as many details as possible.

false