> > 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 2 quarters, but, 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 exchanges a set "L" of lumber for a set of "M" of > money. The cardinality of set "M" is 100. Each element is worth one dollar. > Make 100 dots representing the elements of the set "M." The set "C," the > cost of production, contains 20 fewer points than set "M." Represent the set > "C" as a subset of set "M." > > Answer this question: What is the cardinality of the set "P" > of profits? > > > > > 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 2000 > > ************************ > > A logger sells a truckload of lumber for $100. His cost of > production is $120. How does Arthur Anderson determine that his profit > margin is $60? > > > > > > Teaching Math In 2005 > > ************************ > > El hachero vende un camion carga por $100. La cuesta de > production es............. > > > > > > > >

/forums/images/graemlins/thinking.gif New math! Ain't it something!?!?!?!? /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif /forums/images/graemlins/histerical.gif