The nth term of a quadratic sequence
Chapters
- 0:00Introduction
- 0:16Do Now
- 1:03The second difference
- 1:32Halve it for the n squared part
- 2:06Example 1: what is left goes up
- 2:45Example 2: what is left goes down
- 3:28Your turn
- 4:09Common mistake
- 4:47Worksheet and exit question
Practise the nth term of a sequence for 15 minutes a day in The Maths Habit, on your phone or in your browser.