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 80% of the price.
What is his profit?

3. Teaching Math In 1990
A logger sells a truckload of timber for $100.
His cost of production is $80.
How much was his 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 2005
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. Your assignment:  Discuss how the birds and squirrels might feel as the logger cut down their homes for a measly profit of $20.

6. Teaching Math In 2009
A logger is arrested for trying to cut down a tree in case it may be offensive to Muslims or other religious groups not consulted in the procuring of the licence to fell. He is also fined $100 as his chainsaw is in breach of Health and Safety legislation as it is deemed dangerous and could cut something. He has used the chainsaw for over 20 years without incident; however he does not have the correct certificate of competence and is therefore considered to be an habitual criminal. His DNA is sampled and his details circulated throughout all government agencies. He protests and is taken to court and fined another $100 because the judge was upset because he represented himself. When he is released from his 1 day detention, he returns to find gypsies have cut down half his wood to build a camp on his land.  He tries to evict them but is arrested, prosecuted for harassing an ethnic minority, imprisoned and fined a further $500.  While he was in jail, the gypsies cut down the rest of his lumber and sold it on the black market for $100 cash. They also enjoyed a barbecue of squirrel and pheasant, and departed, leaving behind several tons of rubbish and asbestos sheeting. The forester, upon release, is warned that failure to clear the rubbish immediately at his own cost is an offence. He complains, and is arrested for environmental pollution, breach of the peace and invoiced for $12,000 for safe disposal costs by a regulated government contractor.

Your assignment:  How many times is the logger going to have to be arrested and fined before he realizes that he is never going to make $20 profit by hard work, and instead will give up, sign on for public assistance, and live off the state for the rest of his life?

7. Teaching Math In 2010
A logger doesn’t sell a truckload of timber because he can’t get a loan to buy a new truck.  His bank has spent all his – all of their money in fact – on a derivative of securitized debt related to sub-prime mortgages in Alabama. They sold this to Japan, and they and the Japanese have lost the lot, except for some borrowed government money left to pay a few million dollar bonuses to their senior directors, and the traders who made the biggest losses.

The logger struggles to pay the $1,200 road tax on his old truck, however, as it was built in the 1970s, it no longer meets the emissions regulations and he is forced to scrap it.

Some Bulgarian loggers buy the truck from the scrap merchant and put it back on the road. They undercut everyone on price for haulage and send their cash back home, while claiming unemployment for themselves and their relatives. If questioned, they speak no English, and it is easier to deport them at the government’s expense. Following a vacation in their homeland, they return to the US with different names and different girls and start again. The logger protests loudly, and is accused in Federal Court of being a racist in violation of U.S. Constitutional law.  Meantime, while awaiting trial, he is forced to pay $1,500 in registration fees, as his name is still on the side of the truck.
The Government is forced to borrow more money in order to pay extra money to the bankers: bonuses are not cheap. Members of Congress in Committee hearings are sore and feel they are missing out on something. They claim the difference on expenses for their second homes, and allowances. Tax paid trips to the Caribbean to study the effects of Global Warming helps them to feel a little better.
(You do the math.)

8. Teaching Math In 2017
   أ المسجل تبيع حموله شاحنة من الخشب من اجل 100 دولار. صا ب تكلفة الانتاج من
 الثمن. ما هو الربح له؟