A figure surrounded by straight lines Whiteboard exercise Play

A figure surrounded by straight lines Student activity Play

A horseshoe magnet Animation Play

An application of vector equations of lines in 3-D Student activity Play

An application of vector equations of lines in 3-D Whiteboard exercise Play

Angles and parallel lines Whiteboard exercise Play

Angles between lines in 3-D objects Whiteboard exercise Play

Angles between lines in 3-D objects Student activity Play

Arbitrary shapes bounded by straight lines Whiteboard exercise Play

Arbitrary shapes bounded by straight lines Student activity Play

Arms of the angle and parallel lines Student activity Play

Arms of the angle and parallel lines Whiteboard exercise Play

Coinciding lines Animation Play

Common points of two lines in space Whiteboard exercise Play

Common points of two lines in space Student activity Play

Converting Imperial units of length Whiteboard exercise Play

Crossing lines cut by two parallel lines Animation Play

Crossing of homozygotes Whiteboard exercise Play

Detection of linked genes Slideshow 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 Simulation Play