Y1

Year 1 One More One Less (to 100)

This Year 1 One More One Less lesson covers the prior learning of finding one more and one less than numbers to 50, before moving onto the main skill of finding one more and one less than numbers to 100.

The lesson starts with a prior learning worksheet to check pupils’ understanding. The interactive lesson slides recap the prior learning before moving on to the main skill. Children can then practise further by completing the activities and can extend their learning by completing an engaging extension task.

National Curriculum Objective

Mathematics Year 1: (1N1a) Count to and across 100, forwards and backwards, beginning with 0 or 1, or from any given number

Mathematics Year 1: (1N2b) Given a number, identify one more and one less

Mathematics Year 1: (1N4) Identify and represent numbers using objects and pictorial representations including the number line, and use the language of: equal to, more than, less than (fewer), most, least

Mathematics Year 1: (1N2c) Read and write numbers from 1 to 20 in numerals and words