Main Idea

One dinosaur had a brain that weighed about as much as three pencils.  Its body weighed ten tons and was over twenty feet in length.  As you can guess, this dinosaur did not think too clearly.  It wasn't the world's brightest dinosaur!  What is the main idea of this paragraph?

• How big one dinosaur was
• What one dinosaur's brain was like
• Why one dinosaur had a small brain

Tags

CCSS.RI.4.2

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RI.8.2

CCSS.RL.4.2

When we think of seaweed, we usually picture brown or green plants a foot or so in length.  Seaweeds are also of other colors.  Some are red.  Some kinds grow to lengths of a hundred feet!  These form giant seaweed forests, where many kinds of fish take shelter.  What is the main idea?

• Why some seaweed grows so large
• What seaweed is like
• Why seaweed is red

Tags

CCSS.RI.3.2

CCSS.RI.4.2

CCSS.RI.5.2

CCSS.RL.4.2

CCSS.RL.5.2

There are about 13,000 wild horses in our country.  Most are in the high lands of the Southwest.  The horses find great difficulty in getting food during the winter months.  Snow covers the grass and small bushes that they feed on.  Their numbers grow smaller each year.  What is the main idea?

• Where wild horses live
• Why grass and bushes can't be seen
• What is happening to our wild horses

Tags

CCSS.RI.3.2

CCSS.RI.4.2

CCSS.RI.5.2

CCSS.RL.3.2

CCSS.RL.4.2

An octopus isn't fast enough to swim after a fish. The octopus must wait for a fish to swim by. When the fish comes within reach, the octopus whips out his long arm to grasp it. Then the octopus has a tasty meal. What is the main idea?

• How much fish an octopus eats

• Why the octopus likes to eat

• How an octopus gets its food

Tags

CCSS.RI.3.2

CCSS.RI.4.2

CCSS.RI.5.2

CCSS.RL.4.2

CCSS.RL.5.2

Weather reporters have to give out a lot of information. That's why they use pictures. The pictures help them tell us about the weather without using so many words. Weather reporters need to know where the cold air is. They need to know where the warm air is. They have to know where it is raining and what types of clouds are in the area. Their reports need to be correct, but they also need to be short. The pictures help weather reporters get the information out in a fast way.
Which sentence best describes the main idea of the paragraph?

• Weather reporters need to know where the cold air is
• Pictures help weather reporters get information out in a fast way
• Their reports need to be correct, but they also need to be short
• They have to know where it is raining and what types of clouds are in the area

Tags

CCSS.RI.3.2

CCSS.RI.4.2

CCSS.RL.3.2

CCSS.RL.4.2

CCSS.RL.5.2