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## math in school...(reposted by request...)

### pdp1@EARTHLINK.NET on sun 5 sep 04

A friend sent me this...as there are many Teachers on our
list, I thought I would forward it...

Phil
Las Vegas

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?

Teaching Math 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 Math in 2010: El hachero vende un camion carga por
\$100. La
cuesta de production es..........

### Ivor and Olive Lewis on mon 6 sep 04

Dear Phil,
Do you still take the little number from the big number ? Or did they
let you take the big number from the little number and give you a red
pen to write with.
Best regards,
Ivor

> A friend sent me this...as there are many Teachers on our
> list, I thought I would forward it...
> 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?
etc, etc, etc.........