Recognising and extending quadratic sequences

A complete lesson for introducing quadratic sequences. Rather than go straight into using or finding nth term rules, the focus is on looking at differences between terms to identify and extend given sequences.

Activities included:

Starter:
A related number puzzle

Main:

• Slides/examples to define quadratic sequences
• A set of sequences, some quadratic, for pupils to determine whether they are quadratic or not.
• A more challenging, open-ended task, where, given the first, second and fourth terms of a quadratic sequence, pupils form and solve an equation to find the third term. Having solved once for given numbers, pupils can create their own examples.

Plenary:
A comparison between linear and quadratic sequences.

No printing required, please review if you buy as any feedback is appreciated!