Posted on 10/8/2013, 3:32 pm

**A farmer sells a bag of potatoes for $100. Production costs used 4/5**

of the sales price. What was his profit?

Traditional teaching in the 70’s:

A farmer sells a bag of potatoes for $100. Production costs used 4/5

of sales price, that is, $80. How much was his profit?

Modern teaching in the 70’s:

A farmer exchanges a set "P" of potatoes for a set "M" of money. The

order of the set "M" is 100 and each element is worth $1. Make a draw

of 100 dots representing the elements of the set "M". The set "C" of

the production costs has 20 dots less than the set "M", so answer now

the next question:

What is the order of the set "B" of profits? (draw its elements in

red).

New teaching system of the 80’s:

A farmer sells a bag of potatoes for $100. Since the production costs

were $80, the profit was $20.

Now, underline the word "potatoes" and discuss it with your class

neighbor.

Reformed system of the 80’s

A privileged Kapitalist steels injustly $20 over a beg of patatous

analize the text and find out gramatik. ortografy and ponctuation

erros and say something about dis process of getting reach.

Computer Aided Instruction in the 90’s:

A sells engineer of an agriculture facility consults the Agro-BBS

which he accesses through a PS/2 running OS/2 (50Mb hard disk, 4Mb 80

ns RAM, 25 MHz 80386) to find out the current day’s price of potatoes.

He introduces the value in his spreadsheet program, analyses linear

regression tendencies in his FARMMANAGER expert system, and after

seeing the results in his new VGA-compatible multisync monitor, and

saving the results in the disk (not forgetting to back up the data) he

outputs the result to a color laser printer (using Post Script).

Make a drawing with your mouse of the 3-D integrated contour of a bag

of potatoes. Next, log into the Agro-BBS and follow the instructions

of the menu.

Teaching in 2000:

What’s a farmer?

of the sales price. What was his profit?

Traditional teaching in the 70’s:

A farmer sells a bag of potatoes for $100. Production costs used 4/5

of sales price, that is, $80. How much was his profit?

Modern teaching in the 70’s:

A farmer exchanges a set "P" of potatoes for a set "M" of money. The

order of the set "M" is 100 and each element is worth $1. Make a draw

of 100 dots representing the elements of the set "M". The set "C" of

the production costs has 20 dots less than the set "M", so answer now

the next question:

What is the order of the set "B" of profits? (draw its elements in

red).

New teaching system of the 80’s:

A farmer sells a bag of potatoes for $100. Since the production costs

were $80, the profit was $20.

Now, underline the word "potatoes" and discuss it with your class

neighbor.

Reformed system of the 80’s

A privileged Kapitalist steels injustly $20 over a beg of patatous

analize the text and find out gramatik. ortografy and ponctuation

erros and say something about dis process of getting reach.

Computer Aided Instruction in the 90’s:

A sells engineer of an agriculture facility consults the Agro-BBS

which he accesses through a PS/2 running OS/2 (50Mb hard disk, 4Mb 80

ns RAM, 25 MHz 80386) to find out the current day’s price of potatoes.

He introduces the value in his spreadsheet program, analyses linear

regression tendencies in his FARMMANAGER expert system, and after

seeing the results in his new VGA-compatible multisync monitor, and

saving the results in the disk (not forgetting to back up the data) he

outputs the result to a color laser printer (using Post Script).

Make a drawing with your mouse of the 3-D integrated contour of a bag

of potatoes. Next, log into the Agro-BBS and follow the instructions

of the menu.

Teaching in 2000:

What’s a farmer?