Range Student activity Play

Reach the star Game Play

Roots of roots – finding true equations Whiteboard exercise Play

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

Second derivative and the local extremum Animation Play

Second-order derivative at a local extremum Whiteboard exercise Play

Second-order derivative at a local extremum Student activity Play

Second-order derivative at a local extremum Whiteboard exercise Play

Second-order derivatives Whiteboard presentation Play

Second-order derivatives Class activity Play

Simplifying algebraic expressions Student activity 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

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

Tangent to the curve at the extremum point Simulation 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 cube roots Whiteboard exercise Play