Defining half-planes Whiteboard exercise Play

Defining half-planes – a simple case Student activity Play

Defining points on the plane using vectors Animation Play

Describing position in a plane Whiteboard exercise Play

Describing regions on the plane using inequalities Whiteboard exercise Play

Different angles Student activity Play

Diffraction Student activity Play

Diffraction Whiteboard exercise Play

Diffraction and interference of mechanical waves Class activity Play

Diffraction and interference of mechanical waves Whiteboard presentation Play

Diffraction and interference of mechanical waves Whiteboard presentation Play

Diffraction and interference of mechanical waves Class activity Play

Diffraction of sound waves Animation Play

Diffraction of sound waves Student activity Play

Diffraction of sound waves Animation Play

Diffraction of sound waves Whiteboard exercise Play

Diffraction of waves and Huygens' principle Animation Play

Diffraction of waves and Huygens' principle Slideshow Play

Diffraction of waves and Huygens' principle Whiteboard exercise Play

Diffraction of waves and Huygens' Principle Student activity Play

Divide a plane into half-planes Student activity Play

Dividing a plane into half-planes Whiteboard exercise Play

Dividing a plane into half-planes Whiteboard exercise Play

Division of electromagnetic waves Chart Play

Division of electromagnetic waves Chart Play