Som et a propos til debatten om synkende nivå
i matte-kunnskaper: Denne kom fra en
amerikaner på LABOR-L, ei radikal liste.
;-)
Trond Andresen
**********************************
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 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?
This archive was generated by hypermail 2.1.2 : 11-07-02 MET DST