The definition of a geometric sequence Student activity Play

The definition of a geometric sequence Whiteboard exercise Play

The diagram of an arithmetic progression Whiteboard exercise Play

The diagram of an arithmetic progression Student activity Play

The double helix of DNA Whiteboard exercise Play

The double helix of DNA Student activity Play

The experiments with the arithmetic progression Chart Play

The expression for the nth term of the sequence Student activity Play

The expression for the nth term Class activity Play

The expression for the nth term Whiteboard presentation Play

The expression for the  nth term of the sequence Whiteboard exercise Play

The Fibonacci sequence Animation Play

The flowers in the vases Whiteboard exercise Play

The formula for the nth term of a sequence Whiteboard exercise Play

The formula for the nth term of a sequence Student activity Play

The general rule for the sequence Whiteboard exercise Play

The genetic code Student activity Play

The H-R diagram Student activity Play

The H-R diagram Student activity Play

The H-R diagram Illustration Play

The H-R diagram Animation Play

The H-R diagram Whiteboard exercise Play

The H-R diagram Whiteboard exercise Play

The heart – the main organ of the circulatory system Slideshow Play

The height of the building Whiteboard exercise Play