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  1. #28
    Join Date
    Aug 2007
    Posts
    1,131

    Default Re: High Electric Bill

    Fifty years of math in the USA
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    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, and if you feel like crying, it's ok.)

    6. Teaching Math In 2008

    Un hachero vende una carretada de maderapara $100.
    El costo de la producciones es $80. Cuanto dinero ha hecho?
    Last edited by goldhiller; 03-21-2008 at 12:47 PM.

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