Small steps Whiteboard presentation Play

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

The Sierpinski Gasket Simulation Play

The similar terms marked wrong Whiteboard exercise Play

The successive steps in balancing redox half-equations Whiteboard exercise Play

Theorems and their assumptions in algebra Whiteboard exercise Play

Theorems and their assumptions in algebra Student activity Play

Theorems and their assumptions in geometry Student activity Play

Transformation phenomenon – the first step to discover the nature of genes Student activity Play

What comes next? Student activity Play

What comes next? Animation Play

What comes next? Whiteboard exercise Play

Worked examples Student activity Play

Wrong steps in reasoning Whiteboard exercise Play

Wrong steps in reasoning Student activity Play

Wrong substrates Animation Play

Wrong substrates Animation Play