Math Evolves
Seen on a professor's door:
The evolution of mathematics education during the last 30 years.
A peasant sells a bag of potatoes for $10. His costs amount to 4/5 of his selling price. What is his profit?
A farmer sells a bag of potatoes for $10. His costs amount to 4/5 of his selling price, i.e. $8. What is his profit?
A farmer exchanges a set P of potatoes with a set M of money. The cardinality of the set M is equal to $10 and each element of M is worth $1. Draw 10 big dots representing the elements of M.
The set C of production costs is comprised of 2 big dots less than the set M. Represent C as a subset of M and give the answer to the question: What is the cardinality of the set of profits? (Draw everything in red).z
1980s
A farmer sells a bag of potatoes for $10. His production costs are $8 and his profit is $2. Underline the word "potatoes" and discuss with your classmates.
A kapitalist pigg undjustlee akires $2 on a sak of patatos. Analiz this tekst and sertch for erors in speling, contens, grandmar and ponctuassion, and than ekspress your vioos regardeng this metid of geting ritch.
Posted January 02, 2002