Term-to-term and position-to-term definitions Animation Play

Terms and description of the sequence Whiteboard exercise Play

Terms that depend on previous terms in a sequence Whiteboard exercise Play

Terms that depend on previous terms in a sequence Student activity Play

The nth term of a sequence Student activity Play

The nth term of a sequence Whiteboard exercise Play

The nth triangular number Animation Play

The arithmetic mean Student activity Play

The arithmetic progression Whiteboard exercise Play

The arithmetic progression Student activity Play

The blocks Whiteboard exercise Play

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