A
Anonymous
Guest
Last week I purchased a burger and fries at McDonalds for $3.58.
>>> >
>>> > The counter girl took my $4.00 and 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 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 2005
>>> >
>>> > Un ranchero vende una carretera de madera para $100.
>>> > El cuesto de la produccion era $80. Cuantos tortillas
>>> > se puede comprar?
>>
>>> >
>>> > The counter girl took my $4.00 and 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 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 2005
>>> >
>>> > Un ranchero vende una carretera de madera para $100.
>>> > El cuesto de la produccion era $80. Cuantos tortillas
>>> > se puede comprar?
>>
