Secrets to measuring a piece of paper - Numberphile
When Cliff Stoll sets your homework, there's always an extra lesson. More links & stuff in full description below ↓↓↓ More Cliff videos: http://bit.ly/Cliff_Videos Cliff's Klein Bottles:...
========== Ten years agoI taught some eighth graders science.The principal said "Oh Cliff, you can teach exactly as you wish." So my idea in teaching is,every day have the kids go home and do an experiment. And, first thing I did was say, okay,hey peoples,here's a homework assignment.Measure the area of this sheet of paper. Use metric units and show your work. And, by the way, here's a ruler for you.So, I don't know, what's the area of this sheet of paper?Just go do it. Bring it in tomorrow. So the obvious thing to do is you take your ruler, you measure across here, 20 centimetersthis way.You go across this way, you measure up and down, 26 centimeters this way. 20 centimeters times 26 centimeters should be around520 square centi...