Math
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? 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
(The State of California)
**********************
El hachero vende un camion carga por $100.
La cuesta de production es.............
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? 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
(The State of California)
**********************
El hachero vende un camion carga por $100.
La cuesta de production es.............
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