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 "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" for profits?

Teaching Math in 1980: A logger sells a truckload of lumber for $100. Her
cost of production is $80 and her 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 1996: By laying off 40% of its loggers, a company improves
its stock price from $80 to $100. How much capital gain per share does the CEO make by exercising his stock options
at $80? Assume capital gains are no longer taxed, because this encourages investment.

Teaching Math in 1997: A company out-sources all of its loggers. The firm
saves on benefits, and when demand for its product is down, the logging work force can easily be cut back. The
average logger employed by the company earned $50,000, had three weeks vacation, a nice retirement plan and medical
insurance. The contracted logger charges $50 an hour. Was outsourcing a good move?

Teaching Math in 1998: A laid-off logger with four kids at home and a ridiculous
alimony from his first failed marriage comes into the logging-company corporate offices and goes postal, mowing
down 16 executives and a couple of secretaries, and gets lucky when he nails a politician on the premises, collecting
his kickback. Was outsourcing the loggers a good move for the company?

Teaching Math in 1999: A laid-off logger serving time in Folsom for blowing
away several people is being trained as a COBOL programmer in order to work on Y2K projects. What is the probability
that the automatic cell doors will open on their own as of 00:01, 01/01/00?