UNIT 4: MEASUREMENT docx

Area Ex: The door has an internal area of ……... Exercise 1: Make questions of dimension.Ss work individually A room has 3 spatial dimensions: length, height and width.. These dimensions

LESSON PLAN 04

UNIT 4: MEASUREMENT 1

 Class: 07 KQ-KC Time: 4 periods

 Main language focus: Reading comprehension

 Integrated language skills: Writing

I Objectives: Students will demonstrate successful reading for comprehension of dimension

and measurement

II Prior Knowledge

Most students have knowledge on Basic English

III Teaching Aids:

Reading text, projector, laptop

IV Teaching Points:

I Dimension

1 Vocabulary:

1 Length

2 Width

3 Height

4 Area Ex: The door has an internal area of …… square metres

Exercise 1: Make questions of dimension.(Ss work individually)

A room has 3 spatial dimensions: length, height and width These dimensions are measured in millimeters or metres The volume of a room equals length times height times width Volume

is measured in cubic metres(m3) The area of the surface in the room is measured in spare metres (m2)

 What’s the internal area of the ……?

 What’s the height of the ……?

 What’s the length of the ……?

Exercise 2: Make a table based on the internal measurement (Ss work individally)

Estimate the internal measurements

Classroom Window…

Door

North wall

West wall

East wall Window Room

width area height width area length height area Height area length height width height volume

4

2

metre Square metres

2 Language focus:

 have a width of

 have an area of

 vary between … and

 range from … to Example:

 The classroom has a width of approximately 4 metres

 The classroom is approximately 4 metres wide

 The window has an area of approximately 2 square metres

 The window is approximately 2 square metres in area

1 Reading:

When designing a building for a group of people, an architect considers the maximum,

minimum and average dimensions of their bodies For each design situation shown below say which dimension an architect should base his calculations on:

II Measurement:

1 Vocabulary: (Ss work individually)

a The temperature of the room is measured in

b The in the concrete block is 5N/mm2

c The noise level of the T.V is measured in

d The illumination in the room is measured in

e The of the concrete foundation is 2,400kg/m3

f The electric current to the T.V is measured in

g The from the light bulb is 50 lux

h The heat flow rate of the radiator is measured in

2 Language focus:

 should be

 should be greater than

 should be less than The performance requirements of a building are expressed in this way:

The area of the room should be 40m2

For maximum requirements:

The area of the room should not be greater than 50m2

For minimum requirements:

The area of the room should not be less than 30 m2

Exercise 1: Read these problems and complete the solutions: (Ss work in groups)

Problem

A family of 5 persons want to build a house The floor area allowed for each person is 10 square metres What is the floor area required?

Solution

There are people The floor area allowed per person Therefore,

Problem

An architect wants to build a concrete column to take a compressive force of 2000 newtons The maximum compressive stress allowed in the concrete is 5 N/mm2 What is the minimum cross-sectional area of the column required?

Solution

The load on the column is The allowed in the concrete is Therefore,

Problem

An architect wants to build a concrete wall with a volume of 10 cubic metres The maximum weight of the wall allowed is 22000 kilogrammes What is the maximum density of concrete required?

Solution

The volume

V READING:

Exercise 1: Complete the maximum size of aggregate that should be used.(Ss work in groups)

Concrete is made from cement, coarse aggregate (stones), fine aggregate (sand or crushed stone) and water Coarse aggregate ranging from 5 mm to 40 mm may be used for normal work The maximum size of the aggregate should not be greater than one quarter of the minimum thickness of the finished concrete The normal maximum sizes are 20 mm and 40

mm (20 mm being more common The maximum size of aggregate which should be use in small concrete sections, or where reinforcement is close together, is 10 mm

Exercise 2: Read the text and mark True or False (Ss work in groups)

C More reading: Skeleton construction (cont.)

1 Vocabulary:

2 Reading: