Understanding quadratic sequences

Has one of your pupils ever asked you why you have to halve the second difference of successive terms in a quadratic sequence to get the coefficient of the n^2 in the nth term rule for the sequence?

A bit of simple algebra does the trick!

Click here to download the resource.

You may also like...

1 Response

  1. 28/12/2010

    […] This post was mentioned on Twitter by My Own Maths Tutor, My Own Maths Tutor. My Own Maths Tutor said: Understanding quadratic sequences http://bit.ly/e3S3Az #math #maths […]

Leave a Reply

Your email address will not be published. Required fields are marked *