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Teaching Math In 1950

A logger sells a truckload of lumber for $100. His cost of production

is 4/5 of the price. What is his profit?

 

 

 

Teaching Math In 1960

A logger sells a truckload of lumber for $100. His cost of

production is 4/5 of the price, or $80. What is his profit?

 

Teaching Math In 1970

A logger sells a truckload of lumber for $100. His cost of production

is $80. Did he make a profit?

 

Teaching Math In 1980

A logger sells a truckload of lumber for $100. His cost of production

is $80 and his profit is $20. Your homework assignment: Underline

the number 20.

 

Teaching Math In 1990

A logger cuts down a beautiful forest because he is selfish and

inconsiderate and cares nothing for the habitat of animals or the

preservation of our woodlands. He does this so he can make a profit

of $20. What do you think of this way of making a living? Topic for

class participation after answering the question: How did the birds

and squirrels feel as the logger cut down their homes? (There are no

wrong answers.)

 

Teaching Math In 2006

Un ranchero vende una carretera de maderapara $100. El cuesto de la

produccion era $80. Cuantos tortillas se puede comprar

 

 

Illegal Aliens have alway been a problem in the U.S. Ask any Indian.