Stem and Leaf Plot

http://www.eduplace.com/math/mhm/5/06a/

A Stem-and-Leaf Plot is used in mathematics where values are split between "stem" and "leaf" to more adequately visualize a group of data.  The "stem" is generally used for the first digit while the "leaf" generally used for the last digit.  In the picture above, the number 81 is split between stem and leaf to better organize the data.