Recurring quotient Whiteboard exercise Play

Roots of roots – finding true equations Whiteboard exercise Play

Rotating a half-turn – symmetry with respect to a point Student activity Play

Scientific notation on the calculator Student activity Play

Simplifying algebraic expressions Student activity Play

Sources of energy and the respiratory quotient Illustration Play

Square roots Student activity Play

Sridhara's method of finding the roots of a quadratic equation Whiteboard exercise Play

Sridhara's method of finding the roots of a quadratic equation Student activity Play

Standard index form and the calculator Animation Play

State in words Animation Play

Subtracting decimals using the written method Student activity Play

Subtracting natural numbers using the written method Student activity Play

Surface area of a cylinder Student activity Play

Surface areas of some solids Student activity Play

Synthetic division Animation Play

Tangents to a circle Student activity Play

The area of a trapezium Student activity Play

The area of a triangle Animation Play

The area of a triangle Student activity Play

The area of a triangle in a coordinate system Whiteboard exercise Play

The correct result of the division Whiteboard exercise Play

The cube roots Whiteboard exercise Play

The definition of a geometric sequence Whiteboard exercise Play

The definition of a geometric sequence Student activity Play