4.2: Differentiability and the limit definition of the derivative, part 1 (IB Math AA HL 1)

Getting into the good stuff in Calculus (featuring a couple interruptions by my dog in the background)! This section is the foundation for one of the most important cornerstones of Calculus, the derivative. We're starting off in the first part by building up to that. First, how do we connect rates of change and limits?

This is part 1, rates of change and defining the derivative.
Part 2: differentiability, tangent lines, and normals

Timestamps:

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Please organise the playlist in order of topics. Thanks!