Parallel lines – part I Student activity Play

Parallel lines – part II Student activity Play

Parallel straight lines Animation Play

Perpendicular lines Student activity Play

Perpendicular lines Animation Play

Perpendicular lines Student activity Play

Perpendicular lines Whiteboard exercise Play

Perpendicular lines Whiteboard exercise Play

Perpendicular lines Whiteboard exercise Play

Perpendicular straight lines Animation Play

Points equidistant from lines Animation Play

Poles of the magnets Whiteboard exercise Play

Problems involving properties of angles and parallel lines Class activity Play

Problems involving properties of angles and parallel lines Whiteboard presentation Play

Proportions in crossing lines cut by two parallel lines Student activity Play

Proportions in crossing lines cut by two parallel lines Whiteboard exercise Play

Reflection symmetry in the coordinate system in the lines x = a and y = b Student activity Play

Reflection symmetry in the vertical and horizontal lines Whiteboard exercise Play

Relationship between the electromagnetic force and the length of a conductor Student activity Play

Relationship between the electromagnetic force and the length of a conductor Whiteboard exercise Play

Relationship between the electromagnetic force and the length of a conductor Slideshow Play

Repulsion between current-carrying conductors Animation Play

Right hand rule Animation Play

Rotation versus the position of equilibrium Slideshow Play

Rotation versus the position of equilibrium Whiteboard exercise Play