Max Maths, Year 4, Learn together, Area (4)

In a Year 4 maths lesson, students are exploring the concept of area, specifically focusing on how to calculate the area of a rectangle. To illustrate this, the example given is a school lawn with a length of 9 metres and a width of 3 metres. The children are taught that to find the area of the rectangle, they simply need to multiply the length by the width. Therefore, the area of the school lawn is calculated as 9 metres multiplied by 3 metres, which equals 27 square metres. This calculation demonstrates that the lawn covers an area of 27 square metres, with the notation for square metres being 'm2'.

Continuing with the theme of area, another problem is presented where students are asked to determine the width of a rectangle when given the length and the area. In this case, the rectangle's length is 7 metres and its area is 28 square metres. To find the missing width, students learn that they must divide the area by the length. By dividing 28 square metres by 7 metres, they find that the width is 4 metres. This exercise reinforces the concept that while multiplication is used to find the area when length and width are known, division is used to find a missing dimension when the area and one dimension are known. The lesson directs students to workbook pages 184 to 186 to continue practising these concepts.