The Xenophile Historian |
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 the 1960s
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 the 1970s
A logger sells a truckload of lumber for $100. His cost of production is $80. Did he make a profit?
4. Teaching Math in the 1980s
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 the 1990s
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 since 2000
Un hachero vende una carretada de madera para $100. El costo de la producciones es $80. ¿Cuál es su beneficio?
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