Experimental proof for the existence of dipole–dipole forces Student activity Play

Experimental proof for the existence of dipole–dipole forces Slideshow Play

Exterior angle of a triangle – observation and proof Student activity Play

Exterior angle of a triangle – proof Animation Play

Exterior angles in a triangle – proof Animation Play

Finding images of figures under reflection Student activity Play

Finding surds Student activity Play

Finding the angle bisector Student activity Play

Geometric problems Student activity Play

How do we construct a rectangle? Animation Play

How do we construct a rhombus? Animation Play

How to construct a line parallel to a given line Student activity Play

How to construct a line perpendicular to a given line Animation Play

How to construct a line perpendicular to a given line Student activity Play

How to construct a perpendicular bisector Animation Play

How to construct an equilateral triangle Student activity Play

How to construct an equilateral triangle Animation Play

How to construct an isosceles triangle Student activity Play

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

How to construct 'Yin Yang' Animation Play

Impossible constructions Animation Play

Localisation of the median Student activity Play

Mathematical statements Whiteboard presentation Play

Mathematical statements Class activity Play

Mixed problems Student activity Play