Addition and subtraction within 10 - Adding two groups of objects - Planning

In a Year 1 mathematics lesson, children are introduced to the foundational concepts of addition and subtraction within 10. The National Curriculum objectives for this session include representing and using number bonds, understanding related subtraction facts within 10, and solving one-step problems using concrete objects and pictorial representations. The key vocabulary for the unit encompasses terms such as 'part', 'whole', 'addition', and 'number bond', which are crucial to grasping the part-whole model—a central focus of the lesson. Resources like differentiated worksheets, teaching slides, and practical tools like scissors, glue, large part-whole models, ten frames, and double-sided counters are provided to facilitate interactive learning. The lesson aims to reinforce the use of mathematical symbols and language associated with addition, such as 'total' and 'together', and encourages children to articulate their understanding in full sentences during partner work.

The lesson structure includes a starter activity where children recall previous learning and use a part-whole model to understand addition. They are prompted to identify parts and wholes within the model and apply this knowledge to create number sentences. As the lesson progresses, children engage in various activities, such as completing part-whole models, constructing addition number sentences, and exploring number bonds through different representations. They are also challenged with reasoning and problem-solving tasks that require them to investigate pairs of numbers that make a total and to correct mistakes in given statements. To consolidate their understanding, children reflect on what they've learned, the skills they've used, and any challenges they've faced. The lesson differentiation caters to varying levels of ability, from those working towards the expected level to those capable of greater depth, allowing each child to progress at their own pace while developing a solid understanding of addition within 10.