Checking and securing understanding of perimeter for standard shapes

Maths

In this unit, pupils built upon their prior learning of the area of different shapes. In the future unit, pupils will continue to further develop their understanding of shapes by considering surface area and volume of pyramids, spheres and cones.

In the prior unit, pupils derived the formula for the circumference and area of a circle. In this unit, this knowledge is combined with knowledge of fractions to find the arc length and area of a sector.

2D and 3D shape: compound shapes

The perimeter of the rectangle is {{ }} cm.

The perimeter of the parallelogram is __________ units.

The perimeter of the trapezium is 26 units. The length of the sloping side is {{}} units.

The regular hexagon has perimeter 30 cm. $$a$$ ={{ }}.

The rectangle has a greater perimeter than the parallelogram.

The parallelogram has a greater perimeter than the rectangle.

Jacob draws a rectangle. Sofia draw a parallelogram (without right angles). Each shape has the same base and height. Which statement is true?

The perimeter of the rectangle is 28 cm. $$m$$ = {{}}.

The {{}} is the distance around a 2D shape.

1 cup is equivalent to 16 tablespoons. A quarter of a cup is equivalent to {{}} tablespoons. 

Approximately 28 grams are equivalent to 1 ounce (oz). There are 16 ounces in a pound. 1 pound is approximately __________ grams.

Starting with the smallest length, put the lengths in order of size.

This lesson will be removed by end of Summer Term 2025.

Checking and securing understanding of perimeter for standard shapes

Lesson outcome

This lesson will be removed by end of Summer Term 2025.