Petrol combustion Animation Play

Planets Student activity Play

Points of intersection Student activity Play

Points that belong to the circle Animation Play

Proof Animation Play

Properties of gases Student activity Play

Properties of solids Student activity Play

Properties of solids Whiteboard exercise Play

Pulmonary and systemic circulations Student activity Play

Quality check Animation Play

Radian Animation Play

Radian measure, introduction Student activity Play

Radians Student activity Play

Radius of a circle Whiteboard exercise Play

Radius of inscribed and circumscribed circles Animation Play

Reactivity of halogens Student activity Play

Reflection and refraction of light Class activity Play

Reflection and refraction of light Whiteboard presentation Play

Refraction of light Class activity Play

Refraction of light Whiteboard presentation Play

Regular polygons – the dodecagon Student activity Play

Regular polyhedron Animation Play

Relationship between the period of revolution and the orbital radius Illustration Play

Resistance of a wire Animation Play

Resistance of a wire – a case study Whiteboard exercise Play