Louise Racher is a primary mathematics adviser for HfL
The humble tens frame paired with double sided counters. Cheap, effective and perhaps a resource underused by schools in the UK. However, once you start using it you will soon realise the multitude of opportunities there are. The ten squares support pupils’ ability to benchmark from 5 and 10 and is a highly effective route to developing the idea of ‘ten-ness’ and the pattern of numbers leading to effective calculation and number sense. High performing jurisdictions such as Singapore use this model with pupils from a very early age; it is hugely popular in Singapore, America and now increasingly in Hertfordshire.