…From Peter in Ruby Bay (NZ)
1. Teaching Maths 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 Maths 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 Maths In 1990
A logger sells a truckload of timber for £100.
His cost of production is £80.
Did he make a profit?
4. Teaching Maths 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 Maths In 2009
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?
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 2018
Unable to – illegible, because middle eastern hieroglyphics will have taken over!
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