Some recent history of math

I dont think this is a re-post, but, it may be on its second times around the block by now.

The evolution in teaching math since the 1950s

Teaching Math In 1955:
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 1965:
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 1975:
A logger sells a truckload of lumber for $100. His cost of production
is $80.
Did he make a profit?

Teaching Math In 1985:
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 1995:
A logger cuts down a beautiful forest because he is selfish and
inconsiderate and cares nothing for the habitat of animals or the
preservation of our woodlands. He does this so he can make a profit
of $20. What do you think of this way of making a living?
Topic for class participation after answering the question:
How did the birds and squirrels feel as the logger cut down their
homes?(There are no wrong answers.)

Teaching Math In 2005:
A logger with a no-bid government contract and personal ties to the
White House sells a truckload of lumber to the defense department for
$1,000,000. His cost of production is only 1/10,000 of the price
because he has taken advantage of lax enforcement of OSHA and EPA
regulations, hires illegal aliens who work for no health insurance
and $3.00 an hour, and he culled the trees from public lands for a
$1.00 fee. After he takes advantage of corporate tax breaks, what is
his net profit?

Teaching Math in 2015:
Un ranchero vende una carretera de maderapara $100. El cuesto de la
produccion era $80. Cuantos tortillas se puede comprar a $1 para un tortilla?

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