The Evolution of Teaching Math.

The Evolution of Teaching Math.

Last week I purchased a burger for $1.58. The cashier took

my $2.00 as 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 three

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.............