Level D 24-Dec-15Created by Mr. Lafferty Maths Dept. Units of length Perimeters Perimeter Perimeter Area Counting squares Area Rectangle

Level D

21 Apr 202321 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.

Units of length

Perimeters

PerimeterPerimeterw

ww

.math

srevis

ion

.com

Area Counting squares

Area Rectangle

Area of Triangle

Level D


Starter QuestionsStarter Questions

Q1. Does 5m = 500cm

Q2. Find two numbers that multiply to give 18and subtract to give 3.

Q3. Write 583 000 in words.

Q4. True or false

ww

w.m

ath

srevis

ion

.com

10 9 3 10 13 13

Level D

21 Apr 202321 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww

w.m

ath

srevis

ion

.com Learning IntentionLearning Intention Success CriteriaSuccess Criteria

1.1. To know the 4 units of To know the 4 units of length.length.

1. To explain the 4 metric units of length and how to convert between them. 2. Be able to convert

between them.

Units of LengthUnits of Length

Level D


w.m

ath

srevis

ion

.com

Units of LengthUnits of LengthThe 4 units of length are :

The metre : This is the standard unit of length and is approximately the distance from your noseto the end of your outstretched arm.

This is of a metre and is about the width of your pinky nail.

1100

100th

The centimetre :

This is of a centimetre and is aboutthe width of a sewing needle.

110The millimetre :

This is metres and is about the the length of 10 football pitches.

1000The kilometre :

1000

Level D


Units of Length Units of Length Converting Converting

MeasurementsMeasurementsw

ww

.math

srevis

ion

.com kilometres

(km)

metres(m)

centimetres(cm)

millimetres(mm)

×10

×100

×1000

1000

100

10

Level D



MeasurementsMeasurementsw

ww

.math

srevis

ion

.com Examples

Convert 2m to cm : 2 x 100 = 200 cm

Convert 4km to m : 4 x 1000 = 4000 m

Convert 34cm to mm :34 x 10 = 340 mm

Convert 50cm to m : 50 ÷ 100 = 0.5 m

Level D


Now try Exercise Ch (page )

ww

w.m

ath

srevis

ion

.com


MeasurementsMeasurements

Level D


Starter Starter QuestionsQuestions

ww

w.m

ath

srevis

ion

.com

(a) 200 cm (b) 550 cm (c) 50 cm

1. True or f alse 2.3 8 = 184

2. Convert to metres (m)

3. Find 2 numbers that add to give 7

and multiply to give 10.

Level D


w.m

ath

srevis

ion


1.1. To know the term To know the term perimeter of a shape.perimeter of a shape.

1. To understand the term perimeter of a

shape.2. Calculate the perimeter

of a shape.

PerimeterPerimeter

Level D


PerimeterPerimeterw

ww

.math

srevis

ion

.com

What is perimeter ?

Hint answer is on the screen !

Level D


PerimeterPerimeter

PerimeterPerimeterw

ww

.math

srevis

ion

.com

Level D


Perimeter

PerimeterPerimeterw

ww

.math

srevis

ion

.com

Level D


PerimeterPerimeteris the distance round the is the distance round the

outside of aoutside of a 2D shape2D shape

PerimeterPerimeterw

ww

.math

srevis

ion

.com

Level D


6cm Calculate the Calculate the perimeter of the perimeter of the rectangle below.rectangle below.

3cm

Perimeter = 6 +3 +6 +

3 =18cm

PerimeterPerimeterw

ww

.math

srevis

ion

.com

Level D


4cm

3cm

5cm

Perimeter =

3 +5 +4 =12cm

PerimeterPerimeterw

ww

.math

srevis

ion

.com

Level D


Calculate the Calculate the perimeter perimeter

of the rectangle.of the rectangle.

10cm

4cm

Perimeter =

28cm

PerimeterPerimeterw

ww

.math

srevis

ion

.com

Level D


Calculate the Calculate the perimeter perimeter

of the triangle below.of the triangle below.

13cm

5cm

12

cm

Perimeter =

30cm

PerimeterPerimeterw

ww

.math

srevis

ion

.com

Level D


Below is a drawing of the Below is a drawing of the school building. Calculate the school building. Calculate the perimeter.perimeter.

PerimeterPerimeterw

ww

.math

srevis

ion

.com

Problem

4 m

9 m8 m

x m

12 m

4 m xx = 12 – 9 =3 m = 12 – 9 =3 m

PerimeterPerimeter= 12 + 8 + 3 + 4 + 9 + 4= 12 + 8 + 3 + 4 + 9 + 4

= 40 m= 40 m

Level D



ww

w.m

ath

srevis

ion

.com

PerimeterPerimeter

Level D


Starter Starter QuestionsQuestions

ww

w.m

ath

srevis

ion

.com

(a) 29 m (b) 5.5 m (c) 50 mm

1. True or f alse 2.3 100 = 2300

2. Convert to centimetres (cm)

3. Find 2 numbers that add to give 7

and multiply to give 12.

Level D


Area Counting Area Counting SquaresSquares

ww

w.m

ath

srevis

ion


1.1. To understand the term To understand the term area.area.

1. To explain area in terms of counting squares.

2.2. Find the area by Find the area by counting squares.counting squares.

Level D



ww

w.m

ath

srevis

ion

.com

The area of a shape is simply defined by :

“the amount of space a shape takes up.”

Think of a square measuring 1 cm by 1cm we say it is :

1cm

1cm

1cm2

( 1 square centimetre )

Level D



ww

w.m

ath

srevis

ion

.com


Level D


Starter QuestionsStarter Questionsw

ww

.math

srevis

ion

.com

Q3. Convert 23metres to (a) cm (b) mm

Q2.

Q1. What is the time difference 09:28 and 11:55

What value is x if

x - 9 = 10

Level D


Area of a Area of a RectangleRectangle

ww

w.m

ath

srevis

ion


1.1. To be able to state area To be able to state area formula for a rectangle.formula for a rectangle.

1. To come up with a formula

for the area of a rectangle.

2. Use the formula to solve problems.

2.2. Apply formula correctly. Apply formula correctly. (showing working)(showing working)

3.3. Answer containing Answer containing appropriate unitsappropriate units

Level D



ww

w.m

ath

srevis

ion

.com

3 1

3

4 3

2

3

6

12X =

X =

X =

L AB

L

L

LB

B

B

L = length

B = Breadth

Must learn formula !

1 cm

Area = length x breadth

A = L x B

Level D



ww

w.m

ath

srevis

ion

.com

Example

Find the area of the rectangle opposite

L = 9cm

B = 2cm

Area = Length x BreadthA = L x BA = 9 x 2

A = 18 cm2

Level D


w.m

ath

srevis

ion

.com

Area of a RectangleArea of a Rectangle


Level D

Q1. True or false


Starter QuestionsStarter Questionsw

ww

.math

srevis

ion

.com 2 3 5 = 5 3 2

Q3. Convert 57 metres to (a) cm (b) mm

Q2. True or false the perimeter of the shape is 130cm

13cm

10cm

Level D


w.m

ath

srevis

ion


1.1. Know area of a right-Know area of a right-angled triangle formulaangled triangle formula

1. Use the area of a Use the area of a rectangle formula to rectangle formula to help help us to come up us to come up with a with a formula formula to calculate the to calculate the area of any right-angled area of any right-angled

triangle.triangle.

2.2. Use formula to work out Use formula to work out area of triangle.area of triangle.

3.3. Show all working and Show all working and units.units.

Area of A Right-Angled Triangle

Level D


Calculate the area of this shape

8cm

A = L x bA = 10 x 8A = 80cm2

10cm

ww

w.m

ath

srevis

ion

.com


Level D


Base

Length

1

Area= L × B2

1

A= L B2

ww

w.m

ath

srevis

ion

.com


Level D



12cm

6cm

1

A= L2

B

1A= 6 12

2

2A=36cm

ww

w.m

ath

srevis

ion

.com


Level D



3cm

4cm

1

A= L b2

1A= 4 3

2

2A=6cm


ww

w.m

ath

srevis

ion

.com

Level D




ww

w.m

ath

srevis

ion

.com

Documents

Level D 24-Dec-15Created by Mr. Lafferty Maths Dept. Units of length Perimeters Perimeter Perimeter Area Counting squares Area Rectangle