Learn about how triangle sequences, quadratic sequences and the common difference with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

The Prior Conundrum Faced with four sequences of numbers, the question was simple: What comes next in each? 1, 3, 6, 10, 15, 21, 28, 36, 45, 55 … 66 The first one is called the “Triangular Number” ...