A closed curve Whiteboard exercise Play

A closed curve Student activity Play

A normal to a curve Whiteboard exercise Play

A normal to a curve Student activity Play

Colour Class activity Play

Curves defined by equations Whiteboard exercise Play

Curves defined by equations Student activity Play

Curves defined parametrically Student activity Play

Curves defined parametrically Whiteboard exercise Play

Examples of refraction Student activity Play

Finding gradients, tangents and normals Class activity Play

Finding gradients, tangents and normals Whiteboard presentation Play

Finding intersection point of the normals Whiteboard exercise Play

Finding tangent and normal Whiteboard exercise Play

Finding tangents and normals Student activity Play

Finding the equation of the normal Whiteboard exercise Play

Finding the equations of the tangent and the normal Whiteboard exercise Play

Finding the normal to the circle Animation Play

Finding the radius of a circle Whiteboard exercise Play

Finding the tangent and the normal Student activity Play

Finding the tangent and the normal Animation Play

Finding the tangent and the normal to a parabola Whiteboard exercise Play

Finding the tangent and the normal to an ellipse Whiteboard exercise Play

Normal development of the brain Illustration Play

Normal human karyotype Illustration Play