Double cone and a plane Animation Play

Drawing parallel lines Whiteboard exercise Play

Drawing parallel lines Animation Play

Electric field Simulation Play

Electric field Whiteboard exercise Play

Electric field Class activity Play

Electric field Student activity Play

Electric field lines Animation Play

Electric field lines Student activity Play

Electric field lines Simulation Play

Electric field lines Whiteboard exercise Play

Electric field lines versus electric field strength Animation Play

Equal angles imply parallel lines Student activity Play

Examples of the intersection of sets Animation Play

Finding gradients of straight lines Animation Play

Finding intersection point Animation Play

Finding intersection point of the normals Whiteboard exercise Play

Finding intersection points Animation Play

Finding intersection points Whiteboard exercise Play

Finding intersection points Student activity Play

Finding intersection points Whiteboard exercise Play

Finding intersection points Whiteboard exercise Play

Finding intersection points of two circles Whiteboard exercise Play

Finding intersection points of two circles Student activity Play

Finding parallel lines Whiteboard exercise Play