Perimeter and Area - Perimeter of Rectilinear Shapes - Starter

The 'Fluent in Four' revision section is a part of a structured lesson for Year 5 students during the Autumn Term, specifically on Week 11, Day 4. The exercises are designed to sharpen students' arithmetic skills through multiplication and division problems. Pupils are expected to fill in the blanks to complete the equations, reinforcing their understanding of basic operations. For instance, they are presented with problems like multiplying two numbers to achieve a product or dividing to find a quotient. The activity also includes a practical application of these skills, where students are tasked with calculating the perimeter of rectilinear shapes, such as rectangles, by adding the lengths of their sides. In one example, they must find the perimeter of a rectangle with sides measuring 4 cm and 12 cm, and in another, a rectangle with sides of 6.5 cm and 13.5 cm.

Additionally, the lesson involves exploring the concept of a fact family with four columns of seven, where students are required to write related multiplication and division facts, demonstrating the relationship between these operations. This helps to deepen their understanding of how numbers can be grouped and manipulated in different ways to maintain equality. Moreover, the lesson touches on the topic of symmetry, prompting students to consider where the lines of symmetry would be in given shapes. This encourages them to visualise and understand the balance and proportional aspects of geometric figures, further enhancing their mathematical comprehension and reasoning abilities.