A circle with a centre at the origin and the given radius Whiteboard exercise Play

A circle with centre at the origin Animation Play

Algebraic solutions Whiteboard exercise Play

Algebraic solutions Student activity Play

Cartesian coordinate system of the plane Student activity Play

Circle theorems Whiteboard presentation Play

Circle theorems Class activity Play

Circles inscribed and circumscribed Whiteboard presentation Play

Circles inscribed and circumscribed Class activity Play

Coordinate system Student activity Play

Drawing a graph of a linear function Animation Play

Equation of a circle Animation Play

Equation of a circle Whiteboard presentation Play

Equation of a circle Class activity Play

Equation of a circle in the coordinate system Animation Play

Graphs and functions Whiteboard presentation Play

Graphs and functions Class activity Play

Insulin of bacterial origin Animation Play

Mutual position of a line and a circle Whiteboard presentation Play

Mutual position of a line and a circle Class activity Play

Origin of crude oil (1) Student activity Play

Origin of crude oil (1) Whiteboard exercise Play

Origin of crude oil (2) Student activity Play

Origin of crude oil (2) Whiteboard exercise Play

Origin of fossil fuels Student activity Play