TED-Ed

One is one ... or is it? - Christopher Danielson (2012x24)

Ημερομηνία προβολής: Μάϊ 21, 2012

TED-Ed Lesson: One bag of apples, one apple, one slice of apple -- which of these is one unit? Explore the basic unit of math (explained by a trip to the grocery store!) and discover the many meanings ...