An array is a way of visualising a calculation. See how to use one to solve multiplication in this Bitesize KS3 maths video.

Educational Studies in Mathematics, Vol. 70, No. 3 (Apr., 2009), pp. 217-241 (25 pages) We examine whether the array representation can support children's understanding and reasoning in multiplication ...

Multiplication Boy helps Mr Sharma buy pencils for the school, using arrays to multiply. Relevant for teaching Maths at KS1 and KS2 in England and Wales, and First and Second Level in Scotland.