Central Idea (Main Idea)

Benjamin Franklin invented many things that made life easier in the late 1700’s.  He invented the lightning rod that saved many homes from fires.  He also invented the Franklin stove.  The stove could heat a room better than a fireplace and saved people a lot of fuel.  He also invented a special kind of glasses called bifocals.  This new kind of glasses helped people to read better.

• Benjamin Franklin thought reading was important.
• Benjamin Franklin was not afraid of fire.
• Benjamin Franklin was a great inventor.
• A Franklin stove can heat a whole room.

Tags

CCSS.RI.5.9

CCSS.RI.7.2

CCSS.RL.5.2

CCSS.RL.6.2

CCSS.RL.7.2

Everyone was surprised when shy little Kate came out on stage. Her sweet voice carried the tune with perfect pitch. Suddenly, she forgot the words. She felt like crying, but then the audience started clapping. They thought the song was over! Kate smiled and took a bow.
What is the main idea?

• a.  Kate was frightened because she had never been on stage before.
• a.  Kate forgot the words and ran off stage.
• Kate forgets the words to her song and is surprised when everyone claps.
• Kate was the best singer that night.

Tags

CCSS.RI.5.2

CCSS.RI.7.2

CCSS.RL.5.2

CCSS.RL.6.2

CCSS.RL.7.2

What is the central idea here
A penny for your thoughts?  If it's a 1943 copper penny, it could be worth as much as fifty thousand dollars.  In 1943, most pennies were made out of steel since copper was needed for World War II, so the 1943 copper penny is ultra-rare.  Another rarity is the 1955 double die penny.  These pennies were mistakenly double stamped, so they have overlapping dates and letters.  If it's uncirculated, it'd easily fetch $25,000 at an auction.  Now that's a pretty penny.  

• The 1943 penny is worth 50 thousand dollars.
• the 1943 penny is more rare than the 1955 penny.
• Some pennies are rare and worth a lot of money.
• None of these options

Tags

CCSS.RI.5.2

CCSS.RI.7.2

CCSS.RL.5.2

CCSS.RL.6.2

CCSS.RL.7.2

Texting is the preferred method of communication for most teens 12-17. In fact, the number of texts sent daily increases with age. Twelve year olds typically send 20 text messages per day, most often just to "say hi'". That number increases to 50 messages per day, on average, for teens 14-17 years old. Girls in the 14-17 age group average over 3,000 texts per week. Given these facts, it's no wonder unlimited texting is a a must-have with a teen in the house.
What is the topic of this paragraph?

• Communicating with teens.
• The texting habits of girls.
• Teen cell phone use.
• Teens and texting.

Tags

CCSS.RI.5.2

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RL.6.2

CCSS.RL.7.2

What is the Central Idea of the passage?
What's that humming sound?  Could it be hummingbird, the only bird capable of backward flight?  Hummingbirds have many unique flight habits that distinguish them from other birds.  Most birds flap their wings up and down to fly, but the hummingbird moves its wings forward and backward very rapidly in a figure eight pattern.  This allows the hummingbird to hover in position, fly upside down, and move about very rapidly.  And while other birds have to push off with their feet to begin flying, and work their ways up to their top speeds, the hummingbird can both start flying at maximum speed and stop flying instantaneously.  After you've seen a hummingbird in flight, it's unlikely that you'll mistake them for another bird.

• Birds and hummingbirds are very different.
• Hummingbirds make a humming sound.
• Hummingbirds wings fly in figure eight patterns.
• The hummingbird flys in a totally unique and unusual way.

Tags

CCSS.RI.5.2

CCSS.RI.6.2

CCSS.RL.5.2

CCSS.RL.6.2

CCSS.RL.7.2

Great waves that sweep in from the ocean are known as tidal waves.  Actually a tidal wave has nothing to do with the tides.  It is caused by an undersea earthquake called a seaquake, or by storms far out to sea.  A tidal wave may rise over fifty feet high.  What is the main idea?

• How high tidal waves may be
• How to start a tidal wave
• What tidal waves are like

Tags

CCSS.RI.5.2

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RL.5.2

CCSS.RL.7.2

The Navajo Indians have greatly increased in numbers in the last one hundred years.  One hundred years ago there were about six thousand Navajo.  Today there are fifteen times that many Navajo Indians - ninety thousand.  Today the Navajo is the biggest Indian tribe.  What is the main idea?

• What the life of Navajo Indians is like
• Why there are so few Indians
• How much the Navajo tribe has grown

Tags

CCSS.RI.5.2

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RL.5.2

CCSS.RL.7.2

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.6.2

CCSS.RI.7.2

CCSS.RL.5.2

CCSS.RL.6.2

CCSS.RL.7.2

An old way of collecting worms for fishing is called grunting.  To go grunting, put a pointed piece of wood into the ground.  Then rub a piece of steel back and forth across it.  The worms feel the noise in the ground.  They come to the surface, and you can just pick them out of the dirt.  This paragraph mainly tells:

• how to run a worm ranch
• why worms come to the surface
• how to get worms for fishing bait
• how to pick worms out of the dirt

Tags

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RL.5.2

CCSS.RL.6.2

CCSS.RL.7.2

Have you ever heard of a flea market?  It's a shopping place where people may find bargain prices.  Many markets are held outdoors.  There are all kinds of surprise goodies  for sale.  A flea market can be a real adventure!  This paragraph mainly tells:

• that many flea markets are held outdoors
• how there are all kinds of surprise goodies
• how a flea market can be dull
• how a flea market is a place where people may find bargains

Tags

CCSS.RI.5.2

CCSS.RI.6.2

CCSS.RL.5.2

CCSS.RL.6.2

CCSS.RL.7.2