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Evolution of Math

dynamike

Member
The evolution in teaching math since the 1950s:


1. Teaching Math In 1950s

A logger sells a truckload of lumber for $100. His cost of production
is 4/5 of the price. What is his profit?

2. Teaching Math in 1960s

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?

3. Teaching Math In 1970s

A logger sells a truckload of lumber for $100. His cost of production
is $80. Did he make a profit?

4. Teaching Math In 1980s

A logger sells a truckload of lumber for $100. His cost of production
is $80 and his profit is $20. Your assignment: Underline the number
20.

5. Teaching Math In 1990s

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.)

6. Teaching Math In 2000s

Un hachero vende una carretada de maderapara $100. El costo de a
producciones es $80.
 
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