Congruent quadrilaterals Simulation Play

Congruent triangles Student activity Play

Congruent triangles Student activity Play

Congruent triangles Student activity Play

Congruent triangles Whiteboard exercise Play

Congruent triangles Animation Play

Congruent triangles Simulation Play

Congruent triangles Animation Play

Congruent triangles Animation Play

Congruent triangles – solving problems Student activity Play

Constructing a congruent angle Animation Play

Corresponding segments and angles – reflection Animation Play

Corresponding segments and angles – rotation Animation Play

Cyclic quadrilaterals Simulation Play

Cyclic quadrilaterals Whiteboard exercise Play

Cyclic quadrilaterals Student activity Play

Dividing an equilateral triangle into nine congruent triangles Whiteboard exercise Play

Exterior angles in quadrilaterals Whiteboard exercise Play

Exterior angles in quadrilaterals Student activity Play

Exterior angles in quadrilaterals – a game Game Play

Finding the exterior angle in quadrilaterals Whiteboard exercise Play

Fingerprints Animation Play

How to check directly whether two triangles are congruent Student activity Play

How to check directly whether two triangles are congruent Whiteboard exercise Play

Other quadrilaterals Student activity Play