Classification of galaxies Illustration Play

Division of galaxies Whiteboard exercise Play

Division of galaxies Student activity Play

Galaxies Class activity Play

Galaxies Whiteboard presentation Play

Galaxies Whiteboard presentation Play

Galaxies Class activity Play

Galaxies, clusters and nebulae Illustration Play

Galaxies, clusters and nebulae Student activity Play

Heated spiral Animation Play

How to calculate the power of an electric current Student activity Play

Miscellaneous exercises Student activity Play

Moons Student activity Play

Spiral galaxies Whiteboard exercise Play

Spiral galaxies Student activity Play

Squared spiral Animation Play

The changing appearance of the Moon Simulation Play

The Earth in the Universe Student activity Play

The Milky Way Student activity Play

The Milky Way Illustration Play

The power of a spiral Animation Play

The relationship between resistance and temperature Simulation Play

The relationship between resistance and temperature Student activity Play

The spectra of galaxies Animation Play

The sum to n terms of an arithmetic progression Student activity Play