Teaching Math in America
You purchase a burger at Burger King for $1.58. The counter girl takes your $2 and then you hand her 8 cents from your pocket. She stands there, holding the nickel and 3 pennies, looking confused and staring at the screen on the register.
You sense her discomfort and tried to tell her she should just give you two quarters in change, but she calls the manager for help. When you try to explain the transaction to her, she just looks at you and cries..
Why do I tell you this?.
Because it demonstrates the evolution in teaching math since the
1950s:
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 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 2010.
Un hachero vende una carretada de maderapara $100. El costo de la producciones es $80. Cuanto dinero ha hecho?.
~~Have a good day!
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