Multiplication and Division (1) - Multiply by 10, 100 and 1,000 - Planning

In a Year 5 mathematics lesson on multiplication and division, students focus on multiplying whole numbers by 10, 100, and 1,000. The lesson utilises a variety of resources, including a place value grid and counters, to visually demonstrate the concept. Worksheets and a presentation also support the learning process. Key vocabulary terms such as 'multiplying', 'multiple', 'place value column', and 'placeholder' are introduced, with additional resources like vocabulary cards and definitions available to aid understanding. The lesson begins with a recap of prior knowledge, followed by an activity where students use a place value chart to visualise the multiplication process. For instance, they explore how multiplying 234 by 10 shifts the digits one place to the left, resulting in 2,340, and apply similar logic for multiplying by 100 and 1,000.

Further activities challenge the children to solve a series of multiplication problems using the place value grid to ensure the correct placement of digits. They also compare different multiplication facts using inequality symbols to determine which results are larger or smaller. Group work encourages collaboration as students work through reasoning problems and share their strategies. The lesson aims to clarify common misconceptions, such as the misunderstanding that multiplying by multiples of 10 involves simply adding zeros to the original number. Instead, children learn that the digits move through the place value columns, making the number ten times larger for each column they move. By the end of the lesson, students are expected to understand the process of multiplication by powers of 10 and be able to apply it in various contexts, from basic calculations to more complex comparisons and reasoning tasks.