Relationship between the force of friction and the surface area Animation Play

Reliability of demonstration Animation Play

Renovation Whiteboard exercise Play

Representing a quadratic function in vertex form using the discriminant Student activity Play

Right-angled triangle or not? Animation Play

Roots of the quadratic equation – example Animation Play

Roots of the quadratic equation – example Animation Play

'Rounded' Pythagorean theorem Animation Play

Satellite telephones Student activity Play

Sections of a cube Student activity Play

Sections of a cube Whiteboard exercise Play

Sectors and segments Student activity Play

Sectors and segments Whiteboard exercise Play

Seismic waves Student activity Play

Seismic waves Slideshow Play

Sequences formed by dividing by a fixed number Student activity Play

Sequences formed by dividing by a fixed number Whiteboard exercise Play

Shape factor Whiteboard exercise Play

Shape factor Student activity Play

Shape factor Animation Play

Shapes bounded by arcs Student activity Play

Shapes bounded by arcs Whiteboard exercise Play

Shapes bounded by arcs and segments Student activity Play

Shapes bounded by arcs and segments Whiteboard exercise Play

Shooting stars Animation Play