Perimeter and Area - Calculate Perimeter - Worksheet

The "Calculate Perimeter" worksheet is a comprehensive resource for teaching Year 6 students how to measure and calculate the perimeter of composite rectilinear shapes, using both centimetres and metres. The worksheet provides differentiated sheets and teaching slides to accommodate various learning levels. Students are encouraged to apply their knowledge of measuring lengths and widths to find unknown side lengths and calculate the perimeter of shapes, both with and without grids. To ensure accuracy, it is recommended that children mark off sides as they are counted to avoid repeating or omitting any measurements. Vocabulary such as 'perimeter', 'measure', 'calculate', 'lengths', 'widths', 'regular', and 'irregular' are central to the lesson, and children engage with these terms to deepen their understanding.

Throughout the lesson, key questions prompt students to consider the properties of squares and rectangles and how these can assist in solving perimeter-related problems. Strategies for finding the length of unknown sides and calculating the total perimeter are explored. For example, students might be asked to draw a square with a given perimeter or to determine the side length of an outer square when given the perimeter of an inner square. The worksheet includes reasoning and problem-solving activities that challenge students to apply their knowledge in various contexts, such as drawing shapes to specific dimensions or converting lengths. These activities help students work towards fluency, achieve greater depth in their understanding, and solve problems involving perimeter in a logical and methodical manner.