Central Idea Practice

People often refer to taxes in terms of their being much too high. In reality, they are probably even higher than you think, because in addition to the federal income tax we are now studying, there are many other Federal, State, and local taxes, including sales taxes, inheritance taxes, state income taxes, personal property taxes, real estate taxes, and others. These are just some of the most obvious ones. 

• Taxes are much too high. 
• We pay more taxes than we may realize. 
• Inheritance taxes and real estate taxes are unfair. 
• Some taxes are hidden. 

Tags

CCSS.RI.6.2

CCSS.RI.6.6

CCSS.RI.6.8

Most children have an interest in learning to play a musical instrument at one point or another during their growing-up years. Parents need to take advantage of that urge to play when it appears. Some very small children become intrigued with music because they see their parents or their older siblings play. The Suzuki method of instruction capitalizes on that early willingness to learn by involving the parent and the child in the child’s instructions. Elementary-aged youngsters often are exposed to stringed instruments or band instruments in their school music classes. Because kids like to do what other kids do, parents who are not musicians themselves can take advantage of both instruction and enthusiasm. It is at the middle school level, however, that peer pressure can really work to the benefit of parents who want to hear the sound of music around the house.
What is the Main Idea?

• most children have an interest in learning to play a musical instrument during their growing-up years.
• some very small children become intrigued with music because they see their parents or siblings play
• at various points, parents can take advantage of their children’s desire to play a musical instrument. 
• middle-school children take delight at selecting and learning to play an instrument along with their friends.

Tags

CCSS.RI.6.2

The Louisiana Purchase proved to be one of the shrewdest business pacts in the entire history of the United States. The purchase doubled in the area of the country and provided territory from which fourteen new states were created either wholly or in part. It also gave us control over the mouth of the Mississippi River and opened up the way to foreign trade. Prior to the purchase, the waterway had been blocked by the Spanish, probably with the approval of Napoleon. The land that was bought was rich in timber, minerals, and natural resources of many kinds. Finally, the cost of the transaction was unbelievably low; the total of $15 million amounted to about four cents an acre. 
What is the Central idea?

• The Louisiana Purchase was a very good business deal for the U.S. 
• The land bought by the Louisiana Purchase was rich in minerals. 
• The land bought by the Louisiana Purchase was very cheap. 
• Most Americans were very pleased with the purchase. 

Tags

CCSS.RI.6.2

 There is some evidence that colors affect you physiologically. For example, when subjects are exposed to red light respiratory movements increase; exposure to blue decreases respiratory movements. Similarly, eye blinks increase in frequency when eyes are exposed to red light and decrease when exposed to blue. This seems consistent with intuitive feelings about blue being more soothing and red being more arousing. After changing a school’s walls from orange and white to blue, the blood pressure of the students decreased while their academic performance improved

• There is some evidence that colors affect you physiologically 
• Similarly, eye blinks increase in frequency when eyes are exposed to red light and decrease when exposed to blue.
• After changing a school’s walls from orange and white to blue, the blood pressure of the students decreased while their academic performance improved. 

Tags

CCSS.RI.6.1

CCSS.RI.6.2

CCSS.RI.6.3

CCSS.RI.6.8

 Imagine testing glass by throwing chickens at it? Sometimes fast moving airplanes fly through flocks of birds. If the birds hit the windshield of a plane, the glass could shatter and cause a crash. Airplane manufacturers have made a chicken cannon that fires rubber chickens at glass windshields. If the windshield doesn't break when the rubber chicken hits it, the designers know that the glass can withstand the force of a real crash.

• Why birds can be dangerous to airplanes
• How a chicken cannon checks glass
• How the Chicken cannon works
• How big a bird can hit a plane and bring it down

Every year hungry deer do millions of dollars' worth of damage to young pine trees. Scientists in Washington have found a way to protect the trees. They use a substance called selenium. Selenium produces a bad smell when dissolved. A bit of this element is put in the ground near trees. Rain dissolves the selenium, and the trees absorb it. The bad smell keeps the deer away until the trees are fully grown.

• Deer damage trees every year
• Selenium in an important mineral
• How we can protect trees from deer
• Why deer eat pine trees

Tags

CCSS.RI.6.2

CCSS.RI.6.3

The peanut is a humble plant with hundreds of functions. Most peanuts are roasted in their shells and lightly salted. About half the peanuts eaten in the United States are ground into a thick paste called peanut butter. The rich oil made from peanuts is good for frying foods and is used for oiling machines and making soaps and paint. Even peanut shells are used to make plastics and to fertilize soil.

• Why peanut oil is used for frying
• Why peanut shells make good fertilizer
• How peanut butter is made
• The many uses of the peanut

Tags

CCSS.RI.3.1

CCSS.RI.3.2

The spots on a fawn's coat let it hide in shady areas without being seen. The viceroy butterfly looks like the bad-tasting monarch, so birds avoid both. The hognose snake hisses and rolls on its back when it fears another animal. When the opossum is attacked, it plays dead. Distressed turtles hide in their shells until they're sure it's safe to come out again.

• How a fawn develops spots
• The defense strategy of a opossum
• How some animals protect themselves
• Why turtles hide in their shells

Tags

CCSS.RI.3.1

CCSS.RI.3.2

Product codes on items consist of bars and numbers on the product label. The first number tell which company made the item. The last numbers identify the product and size. A laser reads the bars at the checkout. A computer finds the price for that product and prints the price on the cash-register slip. Store owners can change prices of items by changing the computer. The records in the computer help the owners learn which goods sell well.

• The product code system is an effect retail system
• Records in a computer help owners sell well
• Computers find prices
• Store owners can change prices often

The harmless hognose snake is a champion bluffer. When this snake is threatened, it hisses and acts as if it will bite. If you don't run away, the hognose snake "plays dead." It rolls over on its back, wiggling around as if it's in distress. Then it "dies" with its mouth open and tongue hanging out. If you turn it on its stomach, the snake will roll over on its back again.

• Where the hognose snake is found
• What things frighten the hognose snake
• When the snake "plays dead" it opens it mouth
• How the hognose snake bluffs as a defense

Tags

CCSS.RI.6.1

CCSS.RI.6.2

CCSS.RI.6.3