Fwd: Fw: Math

Last week I purchased a veggieburger for $1.58. The counter girl took my
$2.08, but 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? Please read more about the "history of teaching
math":

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 By cutting down beautiful forest trees, the
logger makes $20. What do you think of this way of making a living? Topic for
class participation after answering the question: How did the forest birds and
squirrels feel as the logger cut down the trees. (There are no wrong
answers.)

Teaching Math In 2005 El hachero vende un camion carga por $100. La
cuesta de production es........








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