Circles inscribed into quadrilaterals Student activity Play

Common tangents Simulation Play

Common tangents Student activity Play

Common tangents to the curves Whiteboard exercise Play

Constructing a perpendicular bisector Simulation Play

Constructing a perpendicular to a given line Simulation Play

Constructing a perpendicular to line at a point off the line Simulation Play

Constructing the graph of the tangent function Animation Play

Constructing the graph of the tangent function Animation Play

Construction of a circle inscribed into a triangle Animation Play

Construction of a parallel line Animation Play

Construction of a perpendicular bisector Animation Play

Construction of a perpendicular line Simulation Play

Construction of a regular pentagon Animation Play

Construction of a right-angled triangle Simulation Play

Construction of a square Simulation Play

Construction of a tangent Animation Play

Construction of a tangent to a circle Animation Play

Construction of a tangent to a circle through a point not on the circle Animation Play

Construction of a tangent to the circle Simulation Play

Construction of bisectors Simulation Play

Construction of flat kites Animation Play

Creating the graph of a tangent-like function Whiteboard exercise Play

Creating the graph of a tangent-like function Student activity Play

Cubes – parallel edges and perpendicular edges, nets Student activity Play