AMERICAN MATH LESSONS 1950 to PRESENT

In the 1950s:
A logger sells a truckload of lumber for $100. His cost of production is 4/5 of the price. What is his profit?


In the 1970s:
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?


In the 1980s:
A logger sells a truckload of lumber for $100. His cost of production is $80. Did he make a profit ? Yes or No


In the 1990s:
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.


In the 2000s:
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).



In 2014:
Un hachero vende una carretada de maderapara $100. El costo de la producciones es $80. Cuanto dinero ha hecho?