Areas under curves can be approximated by the sum of the areas of rectangles. This can lead to more accurate calculations using limits and integration.
Numerical integration can be used to approximate areas in the physical world.
Understand that integration is an infinite sum of infinitesimally small pieces (rectangles).
Integration is about finding the surface area and volume of shapes. We can do this by adding up 'slices' of area of well known shapes.
Integration is the opposite of derivation. Make sure to add a constant after integrating: " + C "