Quadratic functions in the factorised form Animation Play

Reflection symmetry in the coordinate system in the x-axis and the y-axis Student activity Play

Reflection symmetry in the horizontal axis Whiteboard exercise Play

Reflection symmetry in the vertical axis Whiteboard exercise Play

Reflection symmetry in the vertical axis – the coordinates of the vertices Whiteboard exercise Play

Right- and left-handed coordinate systems Animation Play

Spherical mirrors Animation Play

Spherical mirrors Student activity Play

Spherical mirrors Whiteboard exercise Play

Structure of the spine Animation Play

Symmetry in a circle Student activity Play

Symmetry in a circle Simulation Play

Tangent to a parabola Student activity Play

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

The axial skeleton Student activity Play

The defects of lenses Student activity Play

The direction of the Earth's rotation Whiteboard exercise Play

The functions  y = x 2  and  y = –x 2 Student activity Play

The functions  y = a(x – p)2 Student activity Play

The mirror equation Student activity Play

The mirror equation Animation Play

The numbers on the vertical axis Whiteboard exercise Play

The ratios of more than two quantities Student activity Play

The reasons for using circles Animation Play

The result of addition and subtraction of rational numbers Animation Play