Teaching Math in 1950s: 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 1960s: 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 1970s: A logger exchanges a set "L" of lumber for a set "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" and answer the following question: What is the cardinality of the set "P" of profits? Teaching Math in 1980s: 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 1990s: 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 Andersen determine that his profit margin is $60 Teaching Math in 2010: El hachero vende un camion carga por $100. La cuesta de production es...

That sure hits close to home. I have been teaching math for a lot of years. I remember trying to understand the so called New Math of the 70's.

So basically what you are saying is the price of a truck load of lumber has not increased since the fifties. Where do you live ? al

I think 2010 math will be a cross between that previously stated and of course the other (from an ethnic crowd that rivals that of our Spanish speaking neighbors.) Da man be cu'in' logs and sellin' that shi# on da conah fo $100. Nex, how much did da man make if he paid his babies momma $80 for producshun. Answer, sounz like da profit would be about two dime bags...know what I'm sayin'. Dats too much wurk...gib me my gubment cheeze and let's go pimp some hos an smoke sum green. Yeah yeah!

Alellis, the rio grande is the river between Mexico and the USA. So a reference to Rio grande not being wide and deep enough means the person thinks there are too many illegal immigrants. An illegal immigrant who has crossed the rio grande is generally called a "*******" because they waded or swam the river to get to the US.