# SAT score decay

As we all know SAT scores have been on the decline for years. The following may be the reason why.

A math problem in the 60's A logger sells a truckload of lumber for \$100. His cost of production is four-fifths of this price. What is his profit?

A math problem in the 70's A logger sells a truckload of lumber for \$100. His cost of porduction is four-fifths of this price, or \$80. What is his profit?

A math problem in the 70's using New Math A logger exchanges a set L of lumber for a set M of money. The cardinality of set M is 100, and each element is worth \$1. Make 100 dots representing the elements of set M. The set C of the cost of production contains 20 fewer points than set M, and answer the following question: What is the cardinality of the set P of profits?

A math problem in the 80's A logger sells a truckload of wood for \$100. His cost of production is \$80, and his profit is \$20. Your assignment: underline the number 20.

A math problem in the 90's under Outcome Based Education. By cutting down beautiful forest trees, a logger makes \$20. What do you think of this way of living? (Topic for class participation: How did the forest birds and squirrels feel?)

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