The shapes of cells Student activity Play

The shapes of cells Slideshow Play

The shapes of different viruses Illustration Play

The shapes that are polygons Whiteboard exercise Play

The three states of matter Animation Play

The three states of matter Student activity Play

The types of information exchanged by organisms Slideshow Play

The unit of capacitance Student activity Play

Three tears Animation Play

Three typical shapes of histograms Animation Play

Torus Animation Play

Translation is a transformation Student activity Play

Translation, rotation and reflection Whiteboard exercise Play

Translations Student activity Play

Translations Simulation Play

Triangle tricks Animation Play

Trigonal pyramidal shape of ammonia Animation Play

Two perpendicular symmetry lines Animation Play

Untypical reflections Whiteboard exercise Play

Untypical reflections Student activity Play

Untypical reflections Simulation Play

Untypical reflections Animation Play

Was Mendel mistaken? Student activity Play

Wave velocity and tension Slideshow Play

Wave velocity and tension Student activity Play