In 1950: A logger sells a truckload of lumber for $100. His cost of production is four-fifths of the price. What is his profit?
In 1960: A logger sells a truckload of lumber for $100. His cost of production is four-fifths of the price, or $80. What is his profit?
In 1970 (new math): A logger exchanges a set L of lumber for a set M of money. The cardinality of set M is 100, and each element is worth $1.00. Make 100 dots representing the elements of the set M. The set C of the costs of production contains 20 fewer points than set M. Represent the set C as a subset of M, and answer the following question: What is the cardinality of the set p of profits?
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.
In 1990: (outcome-based education): 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: How did the forest birds and squirrels feel?)
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.
In 2000: The logging company made $20 profit. If the original selling price is $100, and there is no cost for the fuel and workers, then the company's expenses were $80. So, if you add in 100 workers at the rate of $5.15 an hour plus $400 a month for fuel and maintnence of the vehicals, divide 5% for stock dividends, and subtract the $50,000 a year salary for the CEO, create the hypothenuse of a right triagle with a slope of 2,5 to determine how long it will take the company to achive a $1,000,000 profit.