Potato joke

Main school 1960: A farmer sells a bag of potatoes for 50 German Marks (DM). The production costs equal four fifths of the revails. Reckon the profit!

High school 1975: An agricultural economist sells an amount of subterranean field crops for an amount G of money; G has cardinality 50. For elements g ∊ G it holds that g equals 1 DM. The set of production costs H is less mighty than G by ten elements. Paint a picture of H as a subset of G and determine the cardinality of the profit set L := G \ H.

Comprehensive school 1990: A farmer sells a bag of potatoes for 50 DM. The production costs are 40 DM, the profit is 10 DM. Underline the word “profit” and discuss about it with your neighbor.

Free Waldorf School 1995: Paint a bag of potatoes and sing a song about it.

Autonomous Experience School 2005: A farmer offers organic potatoes on the market. Take a potato in hand. How is it to the touch? How does it smell like? Scrape off some dirt, pulverise it between your fingers. Inhale the smell. Close your eyes and empathize with the potato. You’re the dirt! Feel the humidity, the darkness … now come back and open your eyes.

Integrated comprehensive school 2015: A farmer sells a bag of potatoes for 50 DM. The production costs are 40 DM, the profit is 10 DM. Underline the word “potato” and discuss about it with your classmates from different cultural milieus. Don’t use any weapons!

Whatever school 2050: Srry no moar potatoez in teh house! Only pom frits at mc donelds. Long live the progress!