Two perpendicular symmetry lines Animation Play

Untypical reflections Whiteboard exercise Play

Untypical reflections Student activity Play

Untypical reflections Simulation Play

Untypical reflections Animation Play

Vector equation of a line in 3-D – a point and a vector Student activity Play

Vector equation of a line in 3-D – a point and a vector Whiteboard exercise Play

Vector equation of a line in 3-D – two points Student activity Play

Vector equation of a line in 3-D – two points Whiteboard exercise Play

Vector equations of lines in 3-D Whiteboard presentation Play

Vector equations of lines in 3-D Class activity Play

Views of 3-D shapes Student activity Play

Views of 3-D shapes Animation Play

Views of 3-D shapes Whiteboard exercise Play

Volume of the pyramid Animation Play

Was Mendel mistaken? Student activity Play

Wave velocity and tension Slideshow Play

Wave velocity and tension Student activity Play

What are similar shapes? Student activity Play

What are similar shapes? Whiteboard exercise Play

What shapes do you see? Student activity Play

Why don't solids change their shape spontaneously? Animation Play

Yoko cleans her room Animation Play