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.
Centre (0,0) and Examples Part 1
Centre (0,0) and Examples Part 2
Centre (h,k) and Examples Part 1
Centre (h,k) and Examples Part 2
General Equation of a Circle *
Determining Whether a Point Lies in, on or Outside the Circle Part 1
Determining Whether a Point Lies in, on or Outside the Circle Part 2
Intersection of a Line and a Circle Part 1
Intersection of a Line and a Circle Part 2 *
Tangents to Circles
Show a Line is a Tangent *
Tangents to Circles Part 1 *
Tangents to Circles Part 2 *
Tangents to Circles Part 3 *
Tangents to Circles Part 4 *
Touching Circles Part 1
Touching Circles Part 2
Touching Circles Part 3 *
Finding the General Equation of a Circle Type 1 *
Finding the General Equation of a Circle Type 2 *
Finding the General Equation of a Circle Type 3 *
Finding the General Equation of a Circle Type 4 *
Finding the General Equation of a Circle Type 5 *