Place value within 10 - Count one less - Planning

In a Year 1 maths lesson focused on the concept of 'One Less' within the topic of Place Value within 10, children are introduced to the idea of counting backwards to determine the number that is one less than a given number. The lesson utilises a variety of resources including dice, dominoes, number cards, and differentiated worksheets to support learning. Key vocabulary such as 'one more', 'one less', 'number track', and 'counting' is emphasised, with vocabulary cards available to aid understanding. The lesson begins with a starter activity where children practise counting backwards from any number and progresses to using a number track to visually identify the number that precedes a given one. This concept is reinforced through independent learning activities and a plenary session that consolidates their understanding.

The lesson plan encourages partner work to foster discussion and the use of full sentences to explain reasoning. Activities within the presentation prompt children to explore what 'one less' means and how to represent numbers in various forms. A key part of the lesson is to challenge common misconceptions, such as the fixed order of statements when expressing 'one less', by exposing children to different representations and orders of numerical statements. The lesson concludes with a reflective 'Give me five' activity where children consider what they've learned, the skills they've used, and what they found challenging. Differentiated activities cater to varying levels of understanding, from 'Working Towards' to 'Greater Depth', ensuring that each child can progress and demonstrate their grasp of finding 'one less' in a number sequence.