This is a 70 page Smartboard file covering Central Tendency. The students are given definitions for Mean, Median, Mode, Range, and Outlier. They are also taught how to find each when given a list of numbers. There are plenty of practice pages for each and all include answers. There is also a section of more challenging problems at the end. All pages are linked to a central homepage so that no matter where you are in the file it will always be easy to navigate around.