The Rational Root Theorem – proof Animation Play

The Rational Root Theorem – rational coefficients Whiteboard exercise Play

The Rational Root Theorem – rational coefficients Student activity Play

The reciprocal of a rational number Whiteboard exercise Play

The reciprocal of a rational number Animation Play

The reciprocal of a rational number Student activity Play

The result of addition and subtraction of rational numbers Animation Play

The result of division Animation Play

The second derivative of an arbitrary rational power of  x Whiteboard exercise Play

The sum and the difference of irrational numbers Whiteboard exercise Play

Transistors and gates Whiteboard presentation Play

Transistors and gates Class activity Play

Using the laws of indices for rational exponents Whiteboard exercise Play

Using the Rational Root Theorem Student activity Play

Using the Rational Root Theorem Whiteboard exercise Play

What decides whether an atomic mass is a whole number or not Animation Play

What if gases did not mix with each other? Animation Play

What is a fraction? Student activity Play

What is a rational expression? Student activity Play

What is an irrational number? Student activity Play

When does the Doppler effect not exist? Animation Play

When is 'work' not work Whiteboard exercise Play

When is 'work' not work Student activity Play

When prevention is not enough – drugs and surgery Student activity Play

When prevention is not enough – drugs and surgery Whiteboard exercise Play