Cuboids – perpendicular faces and nets Student activity Play

Day and night Student activity Play

Diffraction Student activity Play

Diffraction Animation Play

Direct current transmission lines Animation Play

Direct current transmission lines Whiteboard exercise Play

Direct current transmission lines Student activity Play

Drawing parallel lines Whiteboard exercise Play

Drawing parallel lines Animation Play

Electric field Whiteboard exercise Play

Electric field Student activity Play

Electric field Class activity Play

Electric field Simulation Play

Electric field lines Student activity Play

Electric field lines Simulation Play

Electric field lines Whiteboard exercise Play

Electric field lines Animation Play

Electric field lines versus electric field strength Animation Play

Energy, power and intensity of a wave Animation Play

Energy, power and intensity of a wave Student activity Play

Equal angles imply parallel lines Student activity Play

Equal segments Animation Play

Finding gradients of straight lines Animation Play

Finding images of figures under reflection Student activity Play

Finding parallel lines Whiteboard exercise Play