Key stage 2 regular and irregular shape practice questionsġ) The diagram shows a pentagon (not drawn accurately). One of the first lessons for Year 5 pupils on regular and irregular polygons on Third Space Learning’s online intervention. In Year 6, pupils compare and classify geometric shapes based on their properties and sizes and find unknown angles in any triangles, quadrilaterals, and regular polygons. ![]() In Year 5, pupils distinguish between regular and irregular polygons based on reasoning about equal sides and angles. This is when children will compare and order angles in preparation for using a protractor and compare lengths and angles to decide if a polygon is regular or irregular. In Year 4 the terminology of ‘regular polygon’ is first introduced. ![]() When referring to regular shapes in the curriculum, the term ‘polygon’ is used – a polygon is a 2D shape with straight sides. When will my child learn about regular and irregular shapes in primary school?
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