These videos are designed for both the Higher and Ordinary Level Mathematics courses, except those with an asterisk, which are only designed for the Higher Level Mathematics course.
Intro to Differentiation (Part 1 of 2)
Intro to Differentiation (Part 2 of 2)
Differentiation by First Principles (Part 1 of 3) *
Differentiation by First Principles (Part 2 of 3) *
Differentiation by First Principles (Part 3 of 3) *