This maths activity uses triangular numbers to calculate the number of gifts in the 12 days of Christmas. In this festive maths activity, students will learn about triangular numbers and how, when a ...

A handy resource pack which includes 2 investigations on triangular numbers: 1 designed to introduce to pupils to the sequence (this resource links with properties of shape) and the other to help ...

One of the most magical aspects of mathematics is the ability for complex and intricate structures to emerge from the simplest of rules. Few mathematical objects are simpler to create – and few weave ...