Recurring decimals Whiteboard presentation Play

Recurring decimals; period Student activity Play

Reduction formulas due to periodicity Whiteboard exercise Play

Reduction formulas due to periodicity Student activity Play

Refractory period Slideshow Play

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

Root-mean-square current and voltage Simulation Play

Root-mean-square current and voltage Student activity Play

Root-mean-square current and voltage Whiteboard exercise Play

s-block elements Animation Play

Satellites Class activity Play

Satellites Whiteboard presentation Play

Satellites Class activity Play

Satellites Whiteboard presentation Play

Sedimentary rocks. Part II Whiteboard presentation Play

Sedimentary rocks. Part II Class activity Play

Sexual intercourse Animation Play

Shifting the graph along the y-axis Animation Play

Shifting the graph along the  x-axis Animation Play

Speed Animation Play

Speed in circular motion Whiteboard exercise Play

Speed in circular motion Student activity Play

Speed in circular motion Simulation Play

Speed of circular motion Student activity Play

Speed of circular motion Whiteboard exercise Play