Activity 1 Perimeter on a Grid Calculate the

Activity 1 Perimeter on a Grid Calculate the perimeter of the shapes. squares 1 cm by 1 cm not to scale What sort of shapes are these? 4 – Length & Perimeter 1

Activity 1 Perimeter on a Grid Calculate the perimeter of the shapes. squares 1 cm by 1 cm not to scale What’s the combined perimeter of the shapes? 4 – Length & Perimeter 2

Activity 1 Perimeter on a Grid Calculate the perimeter of the shapes. squares 1 cm by 1 cm not to scale Which has the largest perimeter? 4 – Length & Perimeter 3

Activity 1 Perimeter on a Grid Calculate the perimeter of the shapes. squares 1 cm by 1 cm not to scale Does the perimeter double when the shape doubles? 4 – Length & Perimeter 4

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. squares 1 cm by 1 cm not to scale Can you draw a different shape with: • The same perimeter? • A perimeter which is 6 cm longer? Can you make a shape with half/double the perimeter of the shape x? 4 – Length & Perimeter 5

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. squares 1 cm by 1 cm not to scale Can you draw a different shape with: • The same perimeter? • A perimeter which is 6 cm longer? Can you make a shape with half/double the perimeter of the shape x? 4 – Length & Perimeter 6

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. The perimeter of the shape is 18 cm. 4 – Length & Perimeter Different shape. The same perimeter. 7

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. Perimeter which is 6 cm longer = 24 cm. 4 – Length & Perimeter 8

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. squares 1 cm by 1 cm not to scale Can you draw a different shape with: • The same perimeter? • A perimeter which is 6 cm longer? • A perimeter which is double/half the length of this one? 4 – Length & Perimeter 9

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. The perimeter of this shape is 24 cm. 4 – Length & Perimeter Different shape. Same perimeter. 10

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. Perimeter which is 6 cm longer = 30 cm. 4 – Length & Perimeter which is half the length = 12 cm. 11

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. squares 1 cm by 1 cm not to scale Can you draw a different shape with: • The same perimeter? • A perimeter which is 6 cm longer? • A perimeter which is double/half the length of this one? 4 – Length & Perimeter 12

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. The perimeter of this shape is 28. 4 – Length & Perimeter Different shape. The same perimeter. 13

Activity 1 Perimeter on a Grid Work out the perimeter of the shape. Perimeter that is 6 cm longer = 34 cm. 4 – Length & Perimeter that is half the length = 12 cm 14

Activity 2 Perimeter on a Grid Using squared paper draw two rectilinear shapes, each with a perimeter of 28 cm. What’s the same and what’s different about these shapes? When do you need to find the perimeter of a shape in real life? 4 – Length & Perimeter 15

Activity 2 Perimeter on a Grid Using squared paper draw two rectilinear shapes, each with a perimeter of 28 cm. What’s the same and what’s different about these shapes? 4 – Length & Perimeter 16

Activity 3 Perimeter on a Grid Draw and find the perimeter of these shapes in cm. squares 1 cm by 1 cm not to scale How do you decide where to start counting when working out the perimeter? 4 – Length & Perimeter 17

Activity 3 Perimeter on a Grid Draw and find the perimeter of these shapes in cm. The perimeter of this shape is 20 cm. 4 – Length & Perimeter The perimeter of this shape is 16 cm. 18

Activity 3 Perimeter on a Grid Draw and find the perimeter of these shapes in cm. 4 – Length & Perimeter 19

Activity 3 Perimeter on a Grid Draw and find the perimeter of these shapes in cm. The perimeter of this shape is 18 cm. 24 cm. 4 – Length & Perimeter 20

Reasoning - 2 Perimeter on Grid You have 12 paving stones to design a patio. The stones are one meter square. The stones must be joined to each other so that at least one edge is joined corner to corner. Use a squared paper to show which design would give the longest perimeter and which 4 – Length & would give the shortest. Perimeter 21

Reasoning - 2 Perimeter on Grid You have 12 paving stones to design a patio. The stones are one metre square. The shortest perimeter would be 16 m in a 2 x 6 arrangement or 4 x 3 square. The longest would be 26 m. 4 – Length & Perimeter 22

Discussion Perimeter on Grid What is perimeter? How do you decide where to start counting when working out the perimeter? Can you make a shape with half/double the perimeter of shape x? When do you need to find the perimeter of a shape in real life? 4 – Length & Perimeter 23