Addition and Subtraction - Adding four digit numbers (one exchange) - Planning

In a Year 4 mathematics lesson, students are introduced to the concept of adding four-digit numbers with a single exchange. The lesson utilises practical resources such as place value counters and a place value grid to help visualise the process. Key vocabulary including 'exchange', 'total', and 'place value' is emphasised, with vocabulary cards available for clarification of terms. The lesson starts with a recap of previous learning, followed by a partner discussion to explore the meaning of 'exchange'. A presentation guides the children through activities where they use the place value grid and counters to understand when and why an exchange is necessary—specifically when a column exceeds nine counters.

During the class, students engage in practical tasks where they replicate numbers on their place value charts and perform calculations that involve exchanging counters across the ones, tens, and hundreds columns. This hands-on approach aids in grasping the concept of exchanging and reinforces their understanding of place value. The lesson is designed to cater to different levels of comprehension, with independent worksheets that are differentiated to challenge students working towards expected levels, at expected levels, and at greater depth. The plenary includes a reflective 'Give me five' activity, where students consider what they have learned, the skills they have used, and what they found challenging, ensuring they solidify their understanding of making exchanges when adding large numbers.