Teaching Math Through the Ages


	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. The 
	set "C", the cost of production contains 20 fewer points than set 
	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 1996:
	By laying off 402 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 outsources all of its loggers. They save on benefits and 
	when demand for their product is down the logging work force can easily 
	be cut back. The average logger employed by the company earned $50,000, 
	had 3 weeks vacation, received a nice retirement plan and medical insurance.
	The contracted logger charges $50 an hour. Was outsourcing a good move?
	
	Teaching Math in 1998:
	A logging company exports its wood-finishing jobs to its Indonesian 
	subsidiary and lays off the corresponding half of its US workers (the higher-paid half). It clear-cuts 95% of the forest, leaving the rest 
	for the spotted owl, and lays off all its remaining US workers. It tells 
	the workers that the spotted owl is responsible for the absence of 
	fellable trees and lobbies Congress for  exemption from the Endangered 
	Species Act. Congress instead exempts the company from all federal 
	regulation. What is the return on investment of the lobbying.
	






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