Measurement Length and Perimeter - Perimeter of Rectilinear Shapes - Starter

In the Year 4 curriculum for the Autumn Term, Week 9, Day 4, students are presented with a series of tasks to enhance their understanding of mathematical concepts, including perimeter calculation. The activities begin with a 'Fluent in Four' revision section, where pupils are challenged to solve quick calculations such as dividing 15 by 3 and finding the quotient of 16 ones divided by four ones. They then apply their arithmetic skills to real-world problems, such as determining the total number of sweets and comparing the number of books read by two different classes. The primary focus of the lesson is to calculate the perimeter of rectilinear shapes, with dimensions provided in centimetres (e.g., 12cm and 11cm). This practical application helps solidify their understanding of perimeter as the total distance around the edge of a shape.

Moving on to Week 9, Day 5, the students continue to build on their measurement skills. The 'Fluent in Four' section again prompts them to engage in a variety of calculations, including addition, subtraction, and working with fractions. They are also tasked with using inverse operations to verify the accuracy of their answers. The lesson then introduces a practical element where students must decide on the appropriate unit of measurement for everyday items such as a fingernail, pencil, the height of a house, or the length of a playground. This helps them understand the relevance of different units of measurement, such as millimetres, centimetres, and metres. The perimeter calculation exercise is revisited, with different dimensions provided (e.g., 7cm, 16cm, 6cm) to ensure a comprehensive grasp of the concept. This hands-on approach to learning measurement and perimeter aims to foster a deeper understanding of the subject matter through practical application and problem-solving.