Reflection of plane waves Animation Play

Reflection of plane waves Whiteboard exercise Play

Reflection of plane waves Student activity Play

Refraction of plane waves Animation Play

Refraction of plane waves Student activity Play

Relationship between the wavelength and the energy of an electromagnetic wave Animation Play

Resonance Animation Play

Resonance Student activity Play

Resonance Student activity Play

Root of any order as a power Student activity Play

Root of any order as a power Whiteboard exercise Play

Roots and the index law for the power of a power Animation Play

Roots as powers Whiteboard exercise Play

Roots as powers Student activity Play

Roots of roots – finding true equations Whiteboard exercise Play

Roots of roots – more examples of true or false equations Whiteboard exercise Play

Rounding decimals Whiteboard exercise Play

Rounding decimals to 0.1 or to 0.01 Animation Play

Rounding decimals to 10–1 or to 10–2 Student activity Play

Rounding to the nearest power of 10 Whiteboard exercise Play

Satellite navigation systems Student activity Play

Satellite telephony Slideshow Play

Satellite television Student activity Play

Satellite television Slideshow Play

Scientific notation – remedial Animation Play