Understand that a point of inflection on a curve is where the curve changes from concave upwards to concave downwards (or vice versa) and hence that the second derivative at a point of inflection is zero.
Be able to use differentiation to find stationary and non-stationary points of inflection.
Learners are expected to be able to find and classify points of inflection as stationary or non-stationary.
Distinguish between maxima, minima and stationary points of inflection.