Multiplication and Division (1) - Multiply by 100 - Planning

In a Year 5 mathematics lesson on multiplication and division, students focus on learning to multiply by 100. The lesson employs a variety of resources such as Base 10 blocks, place value counters, and charts to help visualise the concept. Students begin by revisiting their understanding of multiplying by 10 to explore the connection with multiplying by 100. Through guided activities, they engage with place value charts and counters to discover that multiplying by 100 increases the number by a factor of 100, shifting the digits to the right. Worksheets and a presentation support the learning process, with key vocabulary introduced including multiplication, value, digits, and calculations.

During independent learning, children apply their knowledge to answer questions and write rules about the multiplication process. They also tackle misconceptions, such as the incorrect assumption that adding two zeros to the end of a number always results in multiplication by 100, which does not hold true for decimal numbers. The lesson concludes with a reflective 'Give me five' plenary, where students consider what they've learned, the skills they've used, and any difficulties they've encountered. Differentiated activities cater to various levels of understanding, from grasping the basic concept to exploring the application of multiplying by 100 in the context of converting measurements.