Is All About Math Age Range: 11 and up (Grades 5 and up. Age/grade range varies – use parental discretion and supervision) This website provides short instructional math videos that can be used to supplement math studies. The videos consist of a narrated lecture and animations that illustrate the concept being discussed. The videos are enabled for iPhone, iPod and iPad devices for portable, on-the-go learning. When you get to the website you’ll see a menu of math videos that include topics such as:  Triangular Numbers (Parts I, II & III) – Elementary explanation of triangular numbers, a general formula for the sum of an arithmetic progression, and a solution to the Recursive equation.…