teaching

Math teacher adds up 75 years in classroom BALTIMORE, (UPI) -- A 93-year-old Maryland math teacher marking his 75th year at the head of the classroom says he is still teaching three classes a day and has no plans to quit. Paul Miller said he first began teaching in 1934, after obtaining a...

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 80% of the price. What is his profit? 3. Teaching Maths In...