Theorem – assumptions and claim Whiteboard exercise Play

Theorems and their assumptions in geometry Student activity Play

Theorems and their assumptions in geometry Whiteboard exercise Play

Triangles – part III Student activity Play

Trigonometric functions of the sum and difference of angles (1) Whiteboard presentation Play

Trigonometric functions of the sum and difference of angles (1) Class activity Play

Trigonometric functions of the sum and difference of angles (2) Whiteboard presentation Play

Trigonometric functions of the sum and difference of angles (2) Class activity Play

Two billiard balls collisions and the velocity vectors Whiteboard exercise Play

Using the sum and difference identities for the sine and cosine Whiteboard exercise Play

Using the trapezium rule Whiteboard exercise Play

Value of the sum of the polynomials Simulation Play

Value of the sum of the polynomials Simulation Play

Vector addition Student activity Play

Vector addition Whiteboard exercise Play

Vector subtraction Student activity Play

Vertical and supplementary angles in a triangle Simulation Play

Vertical angles – revision Student activity Play

Visualisation of squaring a binomial sum Animation Play

What is a perimeter? Animation Play

What is a perimeter? Student activity Play

Why are they sums? Animation Play

Work and the time necessary to perform it – part 1 Student activity Play

Write the sum using powers of 10 Student activity Play

Write the sum. Place value Whiteboard exercise Play