Measurement Length and Perimeter - Measure Perimeter - Presentation
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Maths Resource Description
In a comprehensive lesson on measuring perimeter, students are set to continue developing their skills in measurement. The class begins with a discussion on what perimeter means, engaging students to think about the concept and its definition. They are then encouraged to physically trace the perimeter of objects around them, such as tables, books, and whiteboards, using their fingers. This tactile approach helps to reinforce the understanding of perimeter as the total length around the edge of a two-dimensional shape.
Subsequent activities challenge students to apply their knowledge by measuring the perimeters of various shapes using a ruler. They are prompted to consider whether it's necessary to measure all sides of a rectangle to determine its perimeter and to circle images where perimeter measurement is possible. Through prediction and practical tasks, students explore which shapes might have longer perimeters and are guided to understand that for regular shapes like squares, measuring one side is sufficient as all sides are equal. The lesson also involves reasoning exercises, where students identify mistakes in perimeter calculation and learn to justify their own measurements. Independent work reinforces these concepts, with tasks requiring students to draw lines showing the perimeters of objects, determine the accuracy of given statements, and measure the perimeters of shapes, demonstrating their understanding and ability to apply the concept of perimeter in various contexts.