The evolution of math teaching

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1. Teaching Maths In 1970
A logger sells a truckload of lumber for ksh 1000. His cost of production is 4/5 of the price. What is his profit?

2. Teaching Maths In 1980
A logger sells a truckload of lumber for ksh 1000. His cost of production is 4/5 of the price, or ksh 800. What is his profit?

3. Teaching Maths In 1990
A logger sells a truckload of lumber for ksh 1000. His cost of production is ksh 800.
Did he make a profit?

4. Teaching Maths In 2000
A logger sells a truckload of lumber for ksh 1000. His cost of production is ksh 800 and his profit is ksh 200. Your assignment: Underline the number 20.

5. Teaching Maths In 2007
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 ksh 200. 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 Maths 2017
Ø£ اÙ?Ù?سجÙ? تبÙ?ع Ø­Ù?Ù?Ù?Ù? شاحÙ?Ø© Ù?Ù? اÙ?خشب Ù?Ù? اجÙ? 100 دÙ?Ù?ار. صاحب تÙ?Ù?Ù?Ø© اÙ?اÙ?تاج Ù?Ù?
اÙ?Ø«Ù?Ù?. Ù?ا Ù?Ù? اÙ?ربح Ù?Ù?Ø?

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