num 18-feb-16created by mr. lafferty maths dept. perimeter area & perimeter area counting...

4 May 20234 May 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.

Perimeter

Area & PerimeterArea & Perimeterww

com Area Counting squares

Area Rectangle

Measuring Lengths / Drawing lines

Measuring Angles

Starter Starter QuestionsQuestions

21 32x

Q1. Solve the equation below

Q2. Find the missing angles

Q3. Find the average of the numbers below

Q4. Which is the better deal

2,5,6,7

75% of £ 240

50% of £ 362or

MNU 2-11b MNU2-11c MTH 3-11b

Area Counting Area Counting SquaresSquares

m Learning IntentionLearning Intention Success CriteriaSuccess Criteria

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

1 We are learning the term area.

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

Area Counting Area Counting SquaresSquares

m 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 :

1cm2( 1 square centimetre )

Area by Counting Area by Counting SquaresSquares

4 May 20234 May 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.www.

m The desks below have been arranged in a certain way. Find the area each design.

Now try Lifeskills

Ex1 Ch6 (page 50)

mArea Counting Area Counting

SquaresSquares

Starter QuestionsStarter Questionsww

Q2. Convert 23metres to (a) cm (b) mm

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

Q3. The answer to the question is 180. What is the question.

Area of a Area of a RectangleRectangle

1.1. Remember area formula Remember area formula for a rectangle.for a rectangle.

1. Develop a formula for the area of a rectangle.

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

3.3. Answer containing Answer containing appropriate unitsappropriate units

4 May 20234 May 2023

Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.

X =X =X =

L = lengthB = Breadth

Must learn formula !

Area = length x breadthA = L x B

m ExampleFind the area of the rectangle opposite

L = 9cm

B = 2cm

Area = Length x BreadthA = L x BA = 9 x 2A = 18 cm2

m Find the area of the rectangle. 3.5cm

10cmArea = Length x BreadthA = L x BA = 10 x 3.5A = 35 cm2

mArea of a RectangleArea of a Rectangle

Now try Lifeskills

Ex2 Ch6 (page 53)

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

1. True or f alse 2.3 8 = 184

2. Convert metres (m)

3. Show that

4. Find 2 numbers that add to give 7 and multiply to give 10.

3 of 320 = 2404

1. Understand the term perimeter of a shape.

1. We are learning the term perimeter of a

shape.

2. Calculate the perimeter of a shape.

PerimeterPerimeter

PerimeterPerimeterww

What is perimeter ?

Hint answer is on the screen !

4 May 20234 May 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.PerimeterPerimeter

Perimeter

PerimeterPerimeteris the distance round the is the distance round the

outside of aoutside of a 2D shape2D shape

6cm Calculate the Calculate the perimeter of the perimeter of the rectangle below.rectangle below.3cm

Perimeter = 6 +3 +6 +

3 =18cm

Now try Lifeskills

Ex3 Ch6 (page 55)

mPerimeterPerimeter

2 16 28 x

60% of £ 240 = £ 144

Q1. Solve the equation below

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

Q3. Explain why the average of the numbers below is 7

Q4. True or false

2,8,8,10

1.1. Remember the 4 units Remember the 4 units of length.of length.

1 We are learning the 4 metric units of length.

2. Be able to convert between them.

Measuring Lengths Measuring Lengths Drawing LinesDrawing Lines

4 May 20234 May 2023www.

m Measuring LinesMeasuring Lines

1cm = 10mm1m = 100cm

4 May 20234 May 2023www.

m Measuring LinesMeasuring Lines

9cm (90mm)

6.8cm(68mm)

7.2cm(72mm)

PerimeterPerimeter

m Each square has length 5cm.Calculate perimeter of each design.

5cm5cm

Now try Lifeskills

Ex4 Ch6 (page 56)

m Measuring Lengths Measuring Lengths

Drawing LinesDrawing Lines

Starter QuestionsStarter Questionsww

com 133 % of £ 270 = 903Q1. Why is

Q4. Convert 45.1 metres to (a) cm (b) mm

Q2. What is the time difference 07:54 and 13:36

Solve 5 37 8 x

Q5. The answer to the question is 90. What is the question.

Measuring AnglesMeasuring Anglesww

com Learning IntentionLearning Intention Success CriteriaSuccess Criteria

1.1. Be able to use a protractor Be able to use a protractor to measure various angles.to measure various angles.

1. We are learning how to use a protractor to measure angles.

4 May 2023 29

A 180o Protractor

Outside scale from 0o to 180o going in a clockwise direction.

Inside scale from 0o to 180o going in an

anti-clockwise direction.

4 May 2023 30

You need to be able to measure an angle to the nearest degree. To help you do this you should always:1. Look directly down onto the cross point.

2. Always use the protractor in a horizontal manner as shown below.

4 May 2023 31

Measuring Angles with a

180o Protractor

0 on the outside so use outside

0 on the inside so use inside scale

4 May 2023 32

Measuring Angles with a

180o Protractor

0 on the outside so use outside

0 on the inside so use inside scale

Now try Lifeskills

Ex5 Ch6 (page 57)

m Measuring Measuring

AnglesAnglesHave you updated your Learning Log ?

Are you on Target ?I can ?

num 18-feb-16created by mr. lafferty maths dept. perimeter area & perimeter area counting...

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