Teaching Math

[originally posted January 06, 2005]

Last week, I purchased a burger at Burger King or $1.58. The girl at the counter took my $2.00 and was digging for my change when I pulled 8 cents from my pocket and gave it to her. She stood there, holding the nicked 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 ther and cried. Why do I tell you this? Please read more abot the

History of Teaching Math

Teaching Math in 1960

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 1970

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 in1980

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, a 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 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 producción es...