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Last week I purchased a burger at a fast food restaurant for $1.58. The counter girltook my $ 2 and I was digging for my change when I pulled 8 cents from myp...ocket and gave it to her. She stood there, holding the nickel and 3pennies, while looking at the screen on her register.I sensed her discomfort and tried to tell her to just give me two quarters,but she hailed the manager for help. While he tried to explain thetransaction to her, she stood there and cried. Why do I tell you this? Because of the evolution in teaching math since the1950s:1. Teaching Math In 1950sA logger sells a truckload of lumber for $100. His cost of production is 4/5of the price. What is his profit?2. Teaching Math In 1960sA logger sells a truckload of lumber for $100. His cost of production is 4/5of the price, or $80. What is his profit?3. Teaching Math In1970sA logger sells a truckload of lumber for $100. His cost of production is$80. Did he make a profit?4. Teaching Math In 1980sA logger sells a truckload of lumber for $100. His cost of production is $80and his profit is $20. Your assignment: Underline the number 20.5. Teaching Math In 1990sA logger cuts down a beautiful forest because he is selfish andinconsiderate and cares nothing for the habitat of animals or thepreservation 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 thebirds and squirrels feel as the logger cut down their homes? (There are nowrong answers, and if you feel like crying, it's ok. )6. Teaching Math In 2009Un hachero vende una carretada de maderapara $100. El costo de laproducciones es $80. Cuantodinero ha hecho?7. Teaching Math In 2013Who cares, just steal the lumber from your rich neighbor's property. Hewon't have a gun to stop you, and it's OK anyway cuz it's redistributingthe wealth.