00:00-00:52 Everybody has intuitive understanding of the concept of curvature. (1/5)
00:52-03:24 Curvature as a rate of change of tangent line. (2/5)
03:24-05:56 Algebraic definition of curvature using arbitrary parameter. (3/5)
05:56-07:44 Algebraic definition of curvature using the length of the curve as a parameter reflects a geometric property of the curve. (4/5)
07:44-08:29 Limit processing. The final definition of curvature. (5/5)
