Ratio of two quantities of different kinds Student activity Play

Ratio of two quantities of different kinds Whiteboard exercise Play

Ratio of two quantities of different kinds Whiteboard exercise Play

Ratio of two quantities of the same kind Simulation Play

Ratio of two quantities of the same kind Whiteboard exercise Play

Ratio of two quantities of the same kind Student activity Play

Recognizing the pressure equation Whiteboard exercise Play

Rectilinear motion and circular motion Animation Play

Reflecting telescopes Student activity Play

Reflecting telescopes Animation Play

Regular pentagon Animation Play

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

Resistivity Student activity Play

Resistivity of a material Animation 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

Scalars and vectors Slideshow Play

Sectors and segments Whiteboard exercise Play

Sectors and segments Student activity Play

Sequences formed by dividing by a fixed number Whiteboard exercise Play