Recurring decimals Student activity Play

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

Representing chiral molecules: Fischer projection Animation Play

Restricted rotation around the C=C bond Animation Play

Rolling and rotations Student activity Play

Rolling down an inclined plane Student activity Play

Root-mean-square current and voltage Simulation Play

Root-mean-square current and voltage Whiteboard exercise Play

Root-mean-square current and voltage Student activity Play

Rotating tyre Animation Play

Rotation Whiteboard exercise Play

Rotation Student activity Play

Rotation Animation Play

Rotation in the coordinate system Student activity Play

Rotation in the coordinate system Whiteboard exercise Play

Rotation is a transformation Student activity Play

Rotation of the polarisation plane Student activity Play

Rotation of the polarisation plane Whiteboard exercise Play

Rotation or symmetry? Animation Play

Rotation symmetry Animation Play