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

Symmetry of a parabola Whiteboard exercise Play

System of inequalities on a graph Animation Play

Systems of inequalities with two variables Whiteboard exercise Play

Systems of inequalities with two variables Student activity Play

Tangent to a parabola Student activity Play

Tangent to a parabola Whiteboard exercise Play

Tangent to a parabola intersecting axis in the given point Whiteboard exercise Play

Tangent to a parabola parallel to the given line Whiteboard exercise Play

Tangents and normals for implicitly or parametrically defined curves Whiteboard presentation Play

Tangents and normals for implicitly or parametrically defined curves Class activity Play

Tangents to a circle Student activity Play

Test-point Animation Play

The x-intercepts of the parabola Whiteboard exercise Play

The y-intercept of the parabola Animation 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 catenary Animation Play

The coordinates of the vertex of a parabola Animation Play

The cube roots Whiteboard exercise Play

The definition, notation and a very simple case Student activity Play