Math

jabber

Well-known member
Joined
Jul 6, 2007
Messages
3,065
Location
Texas
Last week I purchased a burger at Burger King for $1.58. The

counter girl took my $2 and I was digging for my change when

I pulled 8 cents from my pocket and gave it to her. She

stood there, holding the nickel and 3 pennies, while looking

at the screen on her register. I sensed her discomfort and

tried to tell her to just give me two quarters, but she

hailed the manager for help. While he tried to explain the

transaction to her, she stood there and cried.. Why do I

tell you this? Because of the evolution in teaching

math since the 1950s:



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?





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?





Teaching Math In 1970s

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

production is $80. Did he make a profit?





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.





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, and if you feel like crying, it's ok.





Teaching Math In 2009

Un hachero vende una carretada de madera pará $100. El costo de

la producciones es $80. Cuánto dinero ha hecho?
 
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