69 lines
2.4 KiB
Plaintext
69 lines
2.4 KiB
Plaintext
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Reforming the teaching system is a subject of constant controversy. A group
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of high-level highly-qualified teachers studied this problem, and specially
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a question that was worrying the large majority of future students (well...,
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er... their parents): The evolution of a mathematical problem.
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You can feel the problem through this comparison:
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Teaching in the 60's:
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A farmer sells a a bag of potatoes for $100. Production costs used 4/5
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of the sales price. What was his profit?
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Traditional teaching in the 70's:
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A farmer sells a bag of potatoes for $100. Production costs used 4/5
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of sales price, that is, $80. How much was his profit?
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Modern teaching in the 70's:
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A farmer exchanges a set "P" of potatoes for a set "M" of money. The
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order of the set "M" is 100 and each element is worth $1. Make a draw
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of 100 dots representing the elements of the set "M". The set "C" of the
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production costs has 20 dots less than the set "M", so answer now the next
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question: What is the order of the set "B" of profits? (draw its elements
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in red).
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New teaching system of the 80's:
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A farmer sells a bag of potatoes for $100. Since the production costs
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were $80, the profit was $20.
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Now, underline the words "potatoes" and discuss it with your class
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neighbour.
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Reformed system of the 80's
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A privileaged Kapitalist steels injustly $20 over a beg of patatous
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analize the text and find out gramatik. ortografy and ponctuation erros and
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say something about dis process of getting reach.
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Computer Aided Instruction in the 90's:
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A sells engineer of an agriculture facility consults the Agro-BBS
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which he accesses through a PS/2 running OS/2 (50Mb hard disk, 4Mb 80 ns RAM,
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25 MHz 80386) to find out the current day's price of potatoes. He introduces
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the value in his spreadsheet program, analyses linear regression tendencies
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in his FARMMANAGER expert system, and after seeing the results in his new
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VGA-compatible multisync monitor, and saving the results in the disk (not
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forgeting to backup it) he outputs the result to a color laser printer (using
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Post Script).
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Make a drawing with your mouse of the 3-D integrated contour of a bag
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of potatoes. Next, log in the Agro-BBS and follow the instructions of the
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menu.
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Teaching in 2000's
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What's a farmer?
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