Geometrical and physical interpretation of differenciation

Description
Definition of derivation, slop of a tangent are discussed. It also includes the Geometrical and Physical interpretation of differentiation with illustrative examples. This gives us the idea of velocity and rate of change. It also explains how to differentiate any given function.
Prof. David Jerison, Maths, 18.01 Single Variable Calculus, Fall 2006: 1: Rate of Change, Massachusetts Institute of Technology: MIT OpenCourseWare),http://ocw.mit.edu (Accessed July,5,2011). License: Creative Commons BY-NC-SA:http://ocw.mit.edu/terms/#cc