Perimeter of Rectilinear Shapes Teaching Slides

Explore activities to find the perimeter of rectilinear shapes with missing measures. Use bar models to help calculate perimeters. Discover how to create different shapes with a perimeter of 24 cm. Engage with interactive teaching slides for fluency in perimeter calculations.

• Math
• Teaching
• Rectilinear Shapes
• Perimeter
• Activities

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Uploaded on Aug 01, 2024 | 0 Views

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1. Perimeter of Rectilinear Shapes 4 Fluency Teaching Slides www.masterthecurriculum.co.uk

2. Perimeter of Rectilinear Shapes Activity 1 Find the perimeter of the shapes. 4 cm 6 cm 10 cm 8 cm 3 cm 4 cm 5 cm 3 cm Which measures are missing from the diagram? 2 4 Length & Perimeter masterthecurriculum.co.uk

3. Perimeter of Rectilinear Shapes Activity 1 Find the perimeter of the shapes. 4 cm 6 cm 10 cm 8 cm 10 cm 3 cm 4 cm 8 cm 7 cm 5 cm 12 cm Perimeter = 4cm + 6cm + 8cm + 4cm + 12 cm + 10cm = 44 cm 3 cm Perimeter = 10cm + 3cm + 7cm + 5cm + 3cm + 8cm = 36 cm 3 4 Length & Perimeter masterthecurriculum.co.uk

4. Perimeter of Rectilinear Shapes Activity 1 Find the perimeter of the shapes. 5 cm 1 cm 4 cm 2 cm 1 cm 3 cm 6 cm 4 cm 4 4 Length & Perimeter masterthecurriculum.co.uk

5. Perimeter of Rectilinear Shapes Activity 1 Find the perimeter of the shapes. 5 cm 7 cm 1 cm 4 cm 2 cm 8 cm 1 cm 3 cm 6 cm 4 cm Perimeter = 1cm + 1cm + 6cm + 2cm + 7cm = 17 cm 2 cm Perimeter = 5cm + 4cm + 3cm + 4cm + 2cm + 8cm = 26 cm 5 4 Length & Perimeter masterthecurriculum.co.uk

6. Perimeter of Rectilinear Shapes Activity 2 The shape is made from 3 identical rectangles. Find the perimeter of the shape. 5 cm 2 cm Could you use a bar model to help? 6 4 Length & Perimeter masterthecurriculum.co.uk

7. Perimeter of Rectilinear Shapes Activity 2 The shape is made from 3 identical rectangles. Find the perimeter of the shape. 2 cm 2 cm 5 cm 5 cm 5 cm 5 cm 3 cm 3 cm 2 cm 2 cm Perimeter = 5cm + 2cm + 3cm + 5cm + 3cm + 2cm + 5cm + 2cm + 5cm + 2cm = 34cm 7 4 Length & Perimeter masterthecurriculum.co.uk

8. Perimeter of Rectilinear Shapes Activity 3 How many different shapes can you make with a perimeter of 24 cm? How many sides do they have? Could you use a bar model to help? 8 4 Length & Perimeter masterthecurriculum.co.uk

9. Perimeter of Rectilinear Shapes Activity 3 How many different shapes can you make with a perimeter of 24 cm? How many sides do they have? There are many different shapes with a perimeter of 24 cm. One of them is: 9 4 Length & Perimeter masterthecurriculum.co.uk

10. Perimeter of Rectilinear Shapes Reasoning - 1 Here is a rectilinear shape. All the sides are the same length and are a whole number of centimetres. Which of these lengths could be the perimeter of the shape? 66cm, 48cm, 27cm, 36cm, 45cm, 80cm, 120 cm Can you think of any other answers which could be correct? 10 4 Length & Perimeter masterthecurriculum.co.uk

11. Perimeter of Rectilinear Shapes Reasoning - 1 Here is a rectilinear shape. All the sides are the same length and are a whole number of centimetres. 48 cm, 36 cm or 120 cm as there are 12 sides and these are all multiples of 12. Any other answers suggested are correct if they are a multiple of 12. 11 4 Length & Perimeter masterthecurriculum.co.uk

12. Perimeter of Rectilinear Shapes Reasoning - 2 Malachi has some rectangles which are identical. 2 cm 6 cm He makes another shape using the same rectangles. Calculate the perimeter of this shape. He makes this shape using his rectangles. What is the perimeter? 12 4 Length & Perimeter masterthecurriculum.co.uk

13. Perimeter of Rectilinear Shapes Reasoning - 2 Malachi has some rectangles which are identical. 2 cm 6 cm 40 cm 40 cm 13 4 Length & Perimeter masterthecurriculum.co.uk

14. Perimeter of Rectilinear Shapes Discussion Which measures are missing from the diagram? Explain to your partner why you think the line is ___cm long. Can you prove it? Can you make a rectilinear shape where your partner can work out the perimeter if you miss off the length of one of the sides? If you know the length of one side and part of the opposite side is known. Could you use a bar model to help? 14 4 Length & Perimeter masterthecurriculum.co.uk