Teaching Math in 1950:

A logger sells a truckload of lumber for $100.

His cost of production is 4/5 of the price.

What is his profit?

Teaching Math in 1960:

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?

Teaching Math in 1970:

A logger exchanges a set “L” of lumber for a set “M” of money.

The cardinality of set “M” is 100. Each element is worth one dollar.

Make 100 dots representing the elements of the set “M.”

The set “C”, the cost of production contains 20 fewer points than set

“M.”

Represent the set “C” as a subset of set “M” and answer the following

question: What is the cardinality of the set “P” of profits?

Teaching Math in 1980:

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.

Teaching Math in 1990:

By cutting down beautiful forest trees, the logger makes $20.

What do you think of this way of making a living?

Topic for class participation after answering the question:

How did the forest birds and squirrels feel as the logger cut

down the trees? There are no wrong answers.

Teaching Match in 2000:

A logger sells a truckload of lumber for $100.

His cost of production is $120.

How does Arthur Andersen determine that his profit margin is $60?

Teaching Match in 2010:

A logger sells a truckload of lumber for $100.

His cost of production is $120.

He owes Congress $750 for the truckload of lumber.

How long will it take his grandchildren to pay the IRS for the truckload lumber?

-updated from email archive

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## Joan Matsukawa said,

Thursday 19th November 2009 at 8:58 pm

This is a riot! The next chapter is the government bails him our for $3 mil.

## hepsy said,

Thursday 19th November 2009 at 9:04 pm

LOL! But Congress has already promised beyond the millions -to billions … and Trillions… can we all say gazillion!!!

-aloha 🙂

## jcscuba said,

Sunday 22nd November 2009 at 11:36 am

In 1950 The Logger would under today’s rules have his company taken away because he was taking his unfair share of profit. $20%.