### Teaching math from 1955 to 2005....

How true and how sad....

1. 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?

2. 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?

3. Teaching Math In

**1975**- A logger sells a truckload of lumber for $100. His cost of production is $80. Did he make a profit?

4. 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.

5. 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.)

6. Teaching Math In

**2005**- Un hachero vende una carretada de maderapara $100. El costo de la producciones es $80.

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