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voellig OT: mathematik im wandel der zeit (englisch)


Shootist

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(im prinzip ja bekannt, aber besonders die letzten beiden versionen haben es in sich wink.gif))

Subject: A Half Century of Teaching Math...................!!!!!!

> 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 Math in 2002:

> 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.............

------------------

...er war einsam aber schneller...

...stolz, mitglied im FWR zu sein und zur 'waffenlobby' zu gehoeren !

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