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## Question

Last week I purchased a burger at Burger King for \$1.58. The counter girl took my \$2 and I was digging for my change when I pulled 8 cents from my pocket and gave it to her. She stood there , holding the nickel and 3 pennies , 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 the transaction to her , she stood there and cried. Why do I tell you this? Because I wanted to point out the evolution in teaching math since the 1950s:

Q. A logger sells a truckload of lumber for \$100. His cost of production is 4/5 of the price. What is his profit ?

Q. 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?

Q. A logger sells a truckload of lumber for \$100. His cost of production is \$80. Did he make a profit?

Q. 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.

Q. 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, and if you feel like crying , it's ok.)

Q. Un hachero vende una carretada de maderapara \$100. El costo de la producciones es \$80. Cuanto dinero ha hecho?

## Recommended Posts

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isn't that imaginary #s or something?

Bingo! complex or imaginary numbers are what you get when you take the square root of a negative number

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My trig class actually has a class shirt, it says this:

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