This is from Bro. Tom Vickery.
1. Teaching Math In the 1950s:
A logger sells a truckload of lumber for $100. His cost of production is 4/5 of the price. What is his profit?
2. Teaching Math In the 1960s:
A logger sells a truckload of lumber for $100. His cost of production is 4/5 of the price, or $80. What is his profit?
3. Teaching Math In the 1970s:
A logger sells a truckload of lumber for $100. His … Read the rest...