The central angle of a regular polygon Whiteboard exercise Play

The central angle of a regular polygon Student activity Play

The content of a problem as an algebraic expression Student activity Play

The content of a problem as an algebraic expression Animation Play

The cumulative frequency polygon Student activity Play

The cumulative frequency polygon Whiteboard exercise Play

The data collected by Yoko Animation Play

The division of electromagnetic waves Student activity Play

The division of electromagnetic waves Chart Play

The Doppler effect Whiteboard presentation Play

The Doppler effect Animation Play

The Doppler effect Simulation Play

The Doppler effect Class activity Play

The Doppler effect Whiteboard exercise Play

The Doppler effect Student activity Play

The Doppler effect in the animal world Student activity Play

The Doppler effect in the animal world Whiteboard exercise Play

The Earth's rotation Animation Play

The explanation of a photoelectric effect Animation Play

The exterior angle of a regular polygon Student activity Play

The exterior angle of a regular polygon – proof (1) Animation Play

The exterior angle of a regular polygon – proof (2) Animation Play

The exterior angles of a polygon Student activity Play

The exterior angles of an n-sided polygon Whiteboard exercise Play

The exterior angles of polygons Whiteboard exercise Play