Lesson 1

Lesson 1 - Perimeter of a Shape

1 / 49

Slide 1: Slide

MathematicsLower Secondary (Key Stage 3)

This lesson contains 49 slides, with interactive quizzes and text slides.

Lesson duration is: 50 min

Items in this lesson

Lesson 1 - Perimeter of a Shape

Slide 1 - Slide

Slide 2 - Slide

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Slide

Starter

Calculate the following expressions:

3 + 4 x 5

3 x 4 + 5

3 x (4 + 5)

3 x 4 + 4 x 5

18 ÷ 2 + 6

18 ÷ 6 - 2

18 ÷ (3 + 6)

18 ÷ 3 + 13

Slide 6 - Slide

Starter

Calculate the following expressions:

3 + 4 x 5

3 x 4 + 5

3 x (4 + 5)

3 x 4 + 4 x 5

18 ÷ 2 + 6

18 ÷ 6 - 2

18 ÷ (3 + 6)

18 ÷ 3 + 13

Slide 7 - Slide

Starter

Calculate the following expressions:

3 + 4 x 5

3 x 4 + 5

3 x (4 + 5)

3 x 4 + 4 x 5

18 ÷ 2 + 6

18 ÷ 6 - 2

18 ÷ (3 + 6)

18 ÷ 3 + 13

Slide 8 - Slide

Explain what we mean by the perimeter of a shape.

Slide 9 - Open question

Slide 10 - Slide

Slide 11 - Slide

The points are selected so that the line segment is approximately straight.

Slide 12 - Slide

Slide 13 - Slide

New Learning

With the person next to you, look at this shape and make a list of things that you can see.

Slide 14 - Slide

New Learning

With the person next to you, look at this shape and make a list of things that you can see.

1. We assume that the shape is made up of 4

_ _ _ _ _ _ _ _ _ _ _ _ _ _.

2. Each square has a side length of _ _ _ _ _ _ _ _ _ _.

3. On the end of each square, we assume it is an

_ _ _ _ _ _ _ _ _ _ _ _ triangle.

4. The two equal sides each have a length of _ _ _ _ _ _ _

Slide 15 - Slide

New Learning

With the person next to you, look at this shape and make a list of things that you can see.

1. We assume that the shape is made up of 4

SQUARES.

2. Each square has a side length of _ _ _ _ _ _ _ _ _ _.

3. On the end of each square, we assume it is an

_ _ _ _ _ _ _ _ _ _ _ _ triangle.

4. The two equal sides each have a length of _ _ _ _ _ _ _

Slide 16 - Slide

New Learning

With the person next to you, look at this shape and make a list of things that you can see.

1. We assume that the shape is made up of 4

SQUARES.

2. Each square has a side length of 3 m.

3. On the end of each square, we assume it is an

_ _ _ _ _ _ _ _ _ _ _ _ triangle.

4. The two equal sides each have a length of _ _ _ _ _ _ _

Slide 17 - Slide

New Learning

With the person next to you, look at this shape and make a list of things that you can see.

1. We assume that the shape is made up of 4

SQUARES.

2. Each square has a side length of 3 m.

3. On the end of each square, we assume it is an

ISOSCELES triangle.

4. The two equal sides each have a length of _ _ _ _ _ _ _

Slide 18 - Slide

New Learning

With the person next to you, look at this shape and make a list of things that you can see.

1. We assume that the shape is made up of 4

SQUARES.

2. Each square has a side length of 3 m.

3. On the end of each square, we assume it is an

ISOSCELES triangle.

4. The two equal sides each have a length of 2 m.

Slide 19 - Slide

New Learning

Each square will have 2 sides as part of the perimeter.

Each triangle will have 2 sides as part of the perimeter.

Slide 20 - Slide

New Learning

Each square will have 2 sides as part of the perimeter.

Each triangle will have 2 sides as part of the perimeter.

Calculate the perimeter of the shape.

The sum of 2 sides of a square = 3 + 3 = 6m

Slide 21 - Slide

New Learning

Each square will have 2 sides as part of the perimeter.

Each triangle will have 2 sides as part of the perimeter.

Calculate the perimeter of the shape.

The sum of 2 sides of a square = 3 + 3 = 6m

The perimeter part of 4 squares = 4 x 6 = 24m

Slide 22 - Slide

New Learning

Each square will have 2 sides as part of the perimeter.

Each triangle will have 2 sides as part of the perimeter.

Calculate the perimeter of the shape.

The sum of 2 sides of a triangle = 2 + 2 = 4m

Slide 23 - Slide

New Learning

Each square will have 2 sides as part of the perimeter.

Each triangle will have 2 sides as part of the perimeter.

Calculate the perimeter of the shape.

The sum of 2 sides of a triangle = 2 + 2 = 4m

The perimeter part of 4 triangles = 4 x 4 = 16m

Slide 24 - Slide

New Learning

Each square will have 2 sides as part of the perimeter.

Each triangle will have 2 sides as part of the perimeter.

Calculate the perimeter of the shape.

The total perimeter = 24 + 16 = 40m

Slide 25 - Slide

Starter

Simplify the following ratios.

15 : 35

24 : 60

15 : 75

16 : 40

5 : 20 : 50

10 : 100 : 1000

3a : 9

24t : 60

Slide 26 - Slide

Starter

Simplify the following ratios.

15 : 35

24 : 60

15 : 75

16 : 40

3 : 7

2 : 5

1 : 5

2 : 5

5 : 20 : 50

10 : 100 : 1000

3a : 9

24t : 60

Slide 27 - Slide

Starter

Simplify the following ratios.

15 : 35

24 : 60

15 : 75

16 : 40

3 : 7

2 : 5

1 : 5

2 : 5

5 : 20 : 50

1 : 4 : 10

10 : 100 : 1000

3a : 9

a : 3

24t : 60

3t : 5

1 : 10 : 100

Slide 28 - Slide

Explain what we mean by the perimeter of a shape.

Slide 29 - Open question

Would you be able to explain what is meant by the perimeter of a shape?

Yes I would be able to explain what the perimeter is of ANY shape

I would be able to explain what is the perimeter of simple shapes such as rectangles

I do not understand what is the perimeter of a shape.

Slide 30 - Poll

Slide 31 - Slide

Slide 32 - Quiz

Slide 33 - Slide

6 units

6 squares

7 units

7 squares

Slide 34 - Quiz

Slide 35 - Slide

17 units

18 units

19 units

20 units

Slide 36 - Quiz

Slide 37 - Slide

48 cm squared

43 cm

43 cm squared

48 cm

Slide 38 - Quiz

Slide 39 - Slide

24 cm

11 cm

22 cm

16 cm

Slide 40 - Quiz

Slide 41 - Slide

Slide 42 - Slide

INDEPENDENT STUDY

TITLE - Unit 11 Week 1 - Lesson 1 - Perimeters

INSTRUCTIONS -

Glue the question sheet into your book and then answer the questions.
If there is not enough room to write your answers on the sheet, write them in your book.
Show all of your working out.

Slide 43 - Slide

Slide 44 - Slide

Slide 45 - Slide

Slide 46 - Slide

Slide 47 - Slide

Slide 48 - Slide

Slide 49 - Slide

Lesson 1

Items in this lesson

Slide 1 - Slide

Slide 2 - Slide

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Slide

Slide 6 - Slide

Slide 7 - Slide

Slide 8 - Slide

Slide 9 - Open question

Slide 10 - Slide

Slide 11 - Slide

Slide 12 - Slide

Slide 13 - Slide

Slide 14 - Slide

Slide 15 - Slide

Slide 16 - Slide

Slide 17 - Slide

Slide 18 - Slide

Slide 19 - Slide

Slide 20 - Slide

Slide 21 - Slide

Slide 22 - Slide

Slide 23 - Slide

Slide 24 - Slide

Slide 25 - Slide

Slide 26 - Slide

Slide 27 - Slide

Slide 28 - Slide

Slide 29 - Open question

Slide 30 - Poll

Slide 31 - Slide

Slide 32 - Quiz

Slide 33 - Slide

Slide 34 - Quiz

Slide 35 - Slide

Slide 36 - Quiz

Slide 37 - Slide

Slide 38 - Quiz

Slide 39 - Slide

Slide 40 - Quiz

Slide 41 - Slide

Slide 42 - Slide

Slide 43 - Slide

Slide 44 - Slide

Slide 45 - Slide

Slide 46 - Slide

Slide 47 - Slide

Slide 48 - Slide

Slide 49 - Slide

More lessons like this

Yr 7 Unit 6 Week 3 - Lesson 2

Yr 7 Unit 6 Week 3 - Lesson 1

1.1 Calculate perimeter and area of triangles & rectangles

1.1 Calculate perimeter and area of triangles & rectangles

1.4 Friday investigation – perimeters and areas

Exploring the Perimeter from Start to Finish

Perimeter Puzzles: Solving Rectilinear Shapes

Discovering 2D Shapes