KS3/GCSE Maths Triangular Numbers Revision Pack

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 pupils understand the derivation of the formula for the nth term of the triangular numbers sequence (this resource links to finding the nth term of quadratic sequences, simplifying expressions and factorising). Also included is a revision sheet covering all the content of triangular numbers in the curriculum including the properties of the sequence, finding the nth term of it and worked examples of exam questions involving triangular numbers.