Number and Geometry. For use with the Multilink® Grid Tray and Cubes, Isos, Prisms and Quadrants. They will help pupils with colour, shape and pattern recognition, counting, number bonds, multiplication, symmetry and continuing patterns to support the National Curriculum for Mathematics at Key Stage 1. Pack contains:. 24 double-sided grid tray sheets providing over 48 activities on number and geometry. Clear 100 number grid overlay for use with the activities. 100 number grid and blank grid for photocopying and devising your own activities. Notes on how to use the sheets and ideas for extension activities.