SJO PW - Język angielski ogólnotechniczny, Poziom B2
Lekcja 3A
DLA LEKTORA
Opracowanie: K. Smarzyk, A. Tomaszkiewicz, D. Wielechowska
______________________________________________________________________________________________
ALPHABET
Input material.
TASK 1
If you have used Microsoft Excel™ you will note the Greek letter (1) _sigma Σ__ as a toolbar icon to represent the
sum function. Physics uses the Greek letter (2) lambda λ to represent wavelength and the Greek capital letter
(3) omega Ω to represent electrical resistance in ohms. Mathematics makes extensive use of Greek letters. The most
famous example is probably the number pi (3.14159265...) being represented as (4) Π. Another common use is for the
Greek capital letter (5) sigma Σ to represent a sum.
Optional lead-in.
Frontal. As a warm-up as ask SS questions like: (1 min)
a) What does O stand for in chemistry? Oxygen
b) What does Ω stand for in physics? Ohm
c) What can be used to indicate pH? Litmus paper
d) What’s the symbol of velocity? V
TASK1
Pair work. SS write the symbols. Check answers. (3 min)
a) potassium
K
b) helium
He
c) calcium
Ca
d) lithium
Li
e) beryllium
Be
f) aluminium
Al
g) boron
B
h) chlorine
Cl
i) silicon
Si
j) fluorine
F
TASK 2
SS work on their own. They match words to form expressions connected with chemistry. Monitor and
help when necessary. SS compare answers with their partners. Check answers. (4 min)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
atomic
chemical
chemical
free
litmus
molecular
nitrogen
organic
periodic
water
A chemistry
B dioxide
C formula
D number
E paper
F radical
G reaction
H table
I vapour
J weight
1
2
3
4
5
6
7
8
9
10
D
C
G
F
E
J
B
A
H
I
TASK 3
Pair work (SS have to work with different partners than in ex.1, for example not with the person
sitting next to them, but someone sitting in front of them or behind them). SS match abbreviation with
the meaning. Monitor and help when necessary. (5 min)
ABBREVIATION
1. i.e.
2. e.g.
3. a.c.
4. d.c.
5. C.
6. c.c.
MEANING
a) cubic centimeter
b) direct current
c) foot, feet
d) number
e) miles per hour
f) pounds
1
SJO PW - Język angielski ogólnotechniczny, Poziom B2
DLA LEKTORA
Opracowanie: K. Smarzyk, A. Tomaszkiewicz, D. Wielechowska
Lekcja 3A
______________________________________________________________________________________________
7. Fahr.
8. Fig.
9. ft.
10. h.p.
11. in.
12. lbs
13. m.p.h.
14. No
15. r.p.m.
16. sq.
1
g
9
c
g) that is
h) horse power
i) Fahrenheit
j) revolutions per minute
k) square
l) figure, diagram
m) inch
n) for example
o) Centigrade
p) alternating current
2
n
10
h
TASK 4
3
p
11
m
4
b
12
f
5
o
13
e
6
a
14
d
7
i
15
j
8
l
16
k
Group work. SS work in groups of 3. They complete the table. Monitor and help when necessary.
Check answers. (7 min)
QUANTITY
Speed or velocity
Acceleration
Force
Energy
Power
Pressure
Frequency
Potential difference
Resistance
Capacitance
SYMBOL
V
a
F
E
P
p
f
U
R
C
NAME OF UNIT
m/s
m/s
newton
joule
watt
pascal
hertz
volt
ohm
farad
SYMBOL FOR UNIT
msˉ¹
msˉ²
N
J
W
Pa
Hz
V
Ω
F
Homework:
1.Scientists around the world use the same internationally agreed systems of units. These are called SI
(Système International) units. The system is built upon seven base units:

The __meter____ is the base unit of length.

The second
is the base unit of time.

The kilogram is the base unit of mass.

The ampere is the base unit of electrical current.

The kelvin
is the base unit of temperature.

The mole
is the base unit of the amount of a substance.

The candela is the base unit of light intensity.
2. a) for example _e.g.
b) that is –i.e.
c) inch –in.
d) pounds - lbs
e) number - No
f) centigrade - C
CONSOLIDATION
Group work (groups of 4/5 students). Each group gets and envelope with a set of questions
inside (see handout1). SS cannot see the questions, they take turns to pick a card. A person who picks a card reads the
question out loud. All members of the group are free to answer, and the person who answers the question correctly
keeps the card (the answer to the question is written on the card, so the person reading out the question can decide who
gives the correct answer). The person who ends up with the biggest number of cards is the winner. The teacher
monitors and helps when necessary. (10 min)
2
SJO PW - Język angielski ogólnotechniczny, Poziom B2
Opracowanie: K. Smarzyk, A. Tomaszkiewicz, D. Wielechowska
DLA LEKTORA
Lekcja 3A
______________________________________________________________________________________________
The materials were taken from:
www.chemicalformula.org,
http://antoine.frostburg.edu/chem/senese/101/compounds/glossary.shtml
http://www.1728.org/greek.htm
HANDOUT 1
What is the base unit of electrical What is candela? The base unit of What is the chemical symbol of
current? ampere
light intensity.
chlorine? Cl
What is the chemical symbol of What is the symbol of frequency? F
potassium? K
What is the symbol of magnetic flux?
B
What is the abbreviation of inch? in.
What is the abbreviation of pounds? Which Greek letter
lbs
wavelength? lambda λ
Which Greek letter represents a sum?
sigma Σ
What can be used to indicate pH? What is the base unit of mass?
litmus paper
kilogram
3
represents