Everyone is equal Slideshow Play

Fermat's Principle Student activity Play

Fermat's Principle Simulation Play

Finding equal expressions Whiteboard exercise Play

Finding lengths Whiteboard exercise Play

Finding lengths Student activity Play

Finding the equivalent expression Whiteboard exercise Play

Finding the variance of the lengths of fish Whiteboard exercise Play

Fractional exponents – finding equal expressions Whiteboard exercise Play

How do equal angles imply parallel lines? Animation Play

How to write a number without too many zeros Student activity Play

Image under translation Animation Play

Imperial units of length – equal measures Whiteboard exercise Play

Lengths of edges of the cubes Whiteboard exercise Play

Matching the equal numbers Whiteboard exercise Play

Opposite angles of a parallelogram Animation Play

Ordering decimals Animation Play

Ordering decimals (1) Student activity Play

Parallelograms, rectangles, rhombuses and squares – properties of diagonals Student activity Play

Parallelograms, rhombuses and trapeziums – properties of angles Student activity Play

Product of two sums Student activity Play

Product of two sums Whiteboard exercise Play

Proof and demonstration of the formula for the area of a triangle Student activity Play

Properties of addition of rational numbers Student activity Play

Properties of diagonals in a rectangle Animation Play