Math in the 20th and 21st Centuries

1. Teaching Math In 1970
A logger sells a truckload of timber for $100.
His cost of production is 4/5 of the price.

What is his profit?

2. Teaching Math In 1980
A logger sells a truckload of timber for $100.
His cost of production is 4/5 of the price, or $80.
What is his profit?

3. Teaching Math In 1990
A logger sells a truckload of timber for $100.
His cost of production is $80.
Did he make a profit?

4. Teaching Math In 2000

A logger sells a truckload of timber for $100.
His cost of production is $80 and his profit is $20.
Your assignment: Underline the number 20.

5. Teaching Math In 2008
A logger cuts down a beautiful forest because he is selfish and inconsiderate and cares nothing for the habitat of animals or the preservation of our woodlands.

He does this so he can make a profit of $20.
What do you think of this way of making a living?
Topic for class participation after answering the question: How did the birds and squirrels feel as the logger cut down their homes? (There are no wrong answers.)

6. Teaching Math In 2018
أ المسجل تبيع حموله شاحنة من الخشب من اجل 100 دولار. صاحب تكلفة الانتاج من الثمن. ما هو الربح له؟

The interesting questions are:

1. The real origin of curriculum changes and the underlying agenda.

2. Will there be a 2028?

Courtesy of Ziva in Israel

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