Finding the centre of a circle Student activity Play

How to construct a perpendicular bisector Animation Play

How to construct the perpendicular bisector of a segment Student activity Play

Note Animation Play

Parallel and perpendicular lines Whiteboard presentation Play

Parallel and perpendicular lines Class activity Play

Property of a perpendicular bisector Animation Play

Proportions in crossing lines cut by two parallel lines Student activity Play

Regular polygons – the dodecagon Student activity Play

Ruler-and-compass constructions Class activity Play

Ruler-and-compass constructions Whiteboard presentation Play

Ruler-and-compass constructions Class activity Play

Ruler-and-compass constructions Whiteboard presentation Play

Ruler-and-compass constructions, locus (1) Class activity Play

Ruler-and-compass constructions, locus (1) Whiteboard presentation Play

Tangent to a circle Student activity Play

Tangent to a circle through a point not on the circle Student activity Play

The bisector of a line Whiteboard exercise Play

The bisector of a line Whiteboard exercise Play

The bisector of a line Student activity Play

The centre of a circle Animation Play

The circumcentre of a triangle Student activity Play

The circumcentre of a triangle Whiteboard exercise Play

The line and the circle Student activity Play

The perpendicular bisector Simulation Play