I have learned to prevent Dengue fever Content outline
School Life
(For secondary schools)
Life Event: I have learned to prevent dengue fever
(Content Outline)
I. Exemplar summary:
This exemplar, titled "I have learned to prevent dengue fever", teaches students knowledge on
dengue fever, and how to help adults take measures to prevent and control mosquito breeding,
thus enhancing students' awareness of environmental hygiene and mosquito prevention and
developing their responsibility and civic-mindedness.
II. Key vocabulary:
（A）Values/attitudes
（B）Concepts
（C）Generic Skills
： responsibility, civic-mindedness
： dengue fever、mosquito prevention
： self-management skills
III. Learning objectives：knowledge on dengue fever, enhancing awareness of mosquito
prevention, developing responsibility and civic mindedness
IV. Learning Focus
Values/attitudes
responsibility,
civic-mindedness
Life events (focus of discussion)
I have learned to prevent dengue fever (knowledge on dengue fever,
enhancing awareness of mosquito prevention, developing responsibility
and civic mindedness)
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I have learned to prevent Dengue fever Content outline
V. Learning and teaching strategies:
Strategy
Learning activities (Time)
Modes
Exemplar
I have learned to  Through
"Mosquito
and Class teacher
prevent dengue
dengue fever" (20 minutes), periods, Moral
fever
arouse students’ interest in Education
learning and let them know lessons, Life
dengue fever is transmitted by Education
mosquitoes.
lessons, and
 With the presentation of General Studies
"Measures to Prevent Dengue lessons, etc.
Fever" (40 minutes), let
students know the symptoms
and modes of transmission of
Dengue fever, and the
preventive measures against it.
 Finally, with "Anti-mosquito
Operation”, let students
review what they have learned
through the game, and
encourage students to remove
stagnant water in daily life to
prevent mosquito breeding (30
minutes).
Follow-up activities
Anti-mosquito
ambassador’s
operation
parent-child
activity
VI. Extension and Application:
Application:

The Food and Environmental Hygiene Department advises schools to
appoint a staff responsible for the co-ordination of the anti-mosquito
program. You can refer to “Prevention of Dengue Fever (Advice to
Schools)” in the website of the Food and Environmental Hygiene
Department
at:http://www.fehd.gov.hk/tc_chi/safefood/library/pdf_pest_control/mosq
uito_school_c.pdf
Extension:

To enhance students' awareness of mosquito prevention at home, it is
recommended that schools use the Worksheet (Annex VI) for the
follow-up activity, in which students are required to complete the
assignment with parents, and check whether there is stagnant water at
home, teaching parents knowledge on mosquito prevention.
Information on Dengue fever can be browsed in the website of the
Department of Health at: http://www.chp.gov.hk/en/content/9/24/19.html
Information on mosquito prevention can be found in the website of the
Food and Environmental Hygiene Department at:
http://www.info.gov.hk/fehd


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I have learned to prevent Dengue fever  Learning and teaching activities
*Note:


The content and pictures of the “Measures to Prevent Dengue Fever”
Powerpoint are adapted from the Food and Environmental Hygiene
Department’s website. Teachers should indicate the source when using it.
Before “Anti-mosquito Operation” is conducted, some arrangements
should be made in the classrooms. For example, hide the question paper
in some inconspicuous locations of the classroom for students to find. To
facilitate the learning activities, special rooms can be used.
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I have learned to prevent Dengue fever  Learning and teaching activities
Personal Life
(Junior Secondary)
Life event: I have learned to prevent dengue fever
Objectives
: This exemplar helps students:
1. recognise symptoms of dengue fever and its modes of transmission.
2. know that the removal of stagnant water to prevent mosquito breeding is
an effective way to prevent the spread of dengue fever.
3. understand removing stagnant water and attaching importance to
environmental hygiene are the responsibility and obligation of citizens.
Values
: responsibility and civic mindedness
Teaching
materials
: “Dengue fever landed in Hong Kong” Transparency Film (Annex 1)
“Measures to Prevent Dengue Fever” Powerpoint (Annex 2)
“Anti-mosquito Ambassador” Transparency Film (Annex 3)
“Anti-mosquito Operation” Question Paper (Annex 4)
“Anti-mosquito Operation” Answer Sheet (Annex 5)
“Follow-up activity” Worksheet (Annex 6)
“Dengue Fever” Information Sheet (Annex 7)
Reference Websites (Teachers only) (Annex 8)
Duration
: 90 minutes
Mode
: Class teacher periods, Moral Education lessons etc.
Flow:
Steps (Time)
Before lessons：
 Hide the 15 sheets of Question Paper in the
inconspicuous locations of the classroom
 Computer、Projector、Overhead projector
Activity 1
Learning focus
Warm-up Activity: “Mosquito and Dengue
fever” (20 minutes)
Teaching materials: Annex 1、Overhead
Projector
1. Teachers have students sit in the classroom and read a
piece of news (Annex 1).
students
to
2. Teachers give students a precis of the news, and then guide  Motivate
discuss
their
relevant
feeling
students to discuss their knowledge and feeling about the
and experience with the
dengue fever news. Suggested questions are as follows:
Dengue fever news, a life
 Have you ever read news about dengue fever?
event
enhancing
their
 How do you feel when you heard that dengue fever is
participation.
found in Hong Kong? Scared or indifferent?
 Teachers’ questions help
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I have learned to prevent Dengue fever  Learning and teaching activities

students’
Do you have friends who have suffered from dengue train
thinking.
fever?
critical
3. Teachers briefly summarise the feedback from students,
pointing out that as long as we work together, the dengue
fever epidemic can actually be under control.
Activity 2
Theme activity：Measures to Prevent Dengue
Fever (40 minutes)
Teaching materials: Annex 2、Computer and
Overhead Projector
1. Teachers use the “Measures to Prevent Dengue Fever” 
powerpoint (Annex II) to introduce what Dengue fever is 
and how to prevent it, and then introduce Aedes albopictus,
and methods to eliminate stagnant water.
Know the following:
Recognise the risk of the
possible spread of dengue
fever in Hong Kong and its
symptom.
2. Teachers can ask questions to test whether students have  Understand the mosquito's
growth
cycle,
thus
grasped the points during presentation of each part.
knowing that removing
stagnant water is the most
3. After the Powerpoint presentation, teachers can
thorough
method
of
demonstrate ways to eliminate stagnant water, such as
mosquito prevention.
clearing the water in a fish tank, or clearing the water in
the saucers under potted plants, or in the wash basin. (Do  Know the general methods
to
eliminate
stagnant
not demonstrate before students the use of pesticides to
water.
avoid danger.)
4. Teachers can add that larvicidal oil or larvicide can be
applied if the water cannot be cleared (such as that in grass
or the water pool), but it should be handled by the
specialists. Students can notify adults when having found
such stagnant water, or call the Food and Environmental
Hygiene Department hotline for help during office hours at
2868 0000.
Activity 3 Consolidation activity: Anti-mosquito
operation (30 minutes)
Teaching Materials: Annex III–VI, small gifts
1. Teachers show the Transparency Film (Annex 3), inviting  Let students suggest a
students to be an anti-mosquito ambassador.
slogan for the anti-mosquito
ambassador to realise that it is
2. Teachers set out the requirements for being an their civic responsibility to
anti-mosquito ambassador: take notice of and report on report the places of stagnant
stagnant water, and disseminate the anti-mosquito
water to adults.
message.
 With the simulation game,
3. Teachers ask students to practice and conduct the
enhance students'
anti-mosquito immediately, pointing out that there are
anti-mosquito awareness.
fifteen potential mosquito breeding places (i.e. previously
posted Questions, Annex IV. To enhance the effect,
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I have learned to prevent Dengue fever  Learning and teaching activities
 Encourage students to
practise in daily life what they
have learnt, and develop their
4. Students who find the question paper must answer the self-management skills.
question (For answers, see Annex V).
 The family activity helps
5. Teachers ask students to return home to complete the
the family to conduct the
worksheet (Annex VI), conducting home inspection
anti-mosquito operation
in accordance with the instructions to identify
together.
any stagnant water. Students may invite their parents
and siblings to complete the tasks.
teachers can print a mosquito pattern at the back of the
question paper), asking students to find out.
6.
Distribute the information sheet on dengue fever (Annex
VII). Encourage students to share information on
mosquito prevention with their parents, and clear the
stagnant water at home, performing the duty as an
anti-mosquito ambassador.
7. Annex VIII is the related websites for teachers.
Through the extended activity,
raise students' awareness of
environmental cleanliness, the
1. Teachers instruct students to collect information about
importance of mosquito
Japanese encephalitis on the Internet. Students can make a prevention and civic
related presentation on what Japanese encephalitis is, how responsibility.
it is transmitted and the preventive measures.
Activity 4 Extended activities: Other mosquito-related
diseases
2.
Ask students to produce publications for preventing
Japanese encephalitis (leaflets, posters), targeting the
residents in the community.
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Annex 1 (Teaching material: Transparency film)
Dengue fever landed in Hong Kong
Hong Kong found its first case of
local infection of dengue fever
(News) The Food and Environmental
Hygiene Department confirmed that the
two cases of dengue fever recently
discovered are local infection. Although
Hong Kong detected dengue fever cases
in the past, they were cases of foreign
infection. The two recent cases are the
first cases of local infection.
Some scholars worry that the news has
since set the alarm bells for dengue fever
ringing in Hong Kong. In addition, since
there is not yet a vaccine at present to
prevent dengue fever, the public should be
vigilant and fight the disease-spreading
mosquito at an early stage.
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Annex 2 (Teaching material: “Measures to Prevent Dengue Fever” Powerpoint)
(Please see the Powerpoint attachment)
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Annex 3 (Teaching material：Transparency Film 2)
Anti-mosquito Ambassador
Since dengue fever may be spread in Hong Kong, to prevent the
possible outbreak of dengue fever epidemic, the school urgently
needs a number of anti-mosquito ambassadors who would take
eliminating mosquitoes as their responsibility diligently and
enthusiastically. Their duties include:
 Explain to others the measures to prevent the transmission of
Dengue fever
 Take notice of the places that may accumulate water at home or at
school, and inform adults to eliminate it
 Change at least every week the water in flower vases and fish
tanks. Avoid accumulation of water in the saucers under potted
plants.
 Cover all containers that hold water with lids.
 Put rubbish into a trash can and cover it with a lid. No littering.
Whoever meet the above qualification automatically become our
anti-mosquito ambassadors. Let’s make concerted efforts to remove
stagnant water and eliminate mosquitoes!
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Annex 4: (Teaching material: “Anti-mosquito Operation” Question Paper)
Question 1
Question 9
When (Month/Year) was the Why should the fish tank
first case of locally contracted water and the aquatic plant
dengue fever found in Hong water be changed at least
Kong?
every 7 days?
Question 2
Question 10
What insect is the vector of How to prevent water trapping
dengue fever?
in the old tyres used for
anti-bumping?
Question 3
Question 11
There are two species that Why does disposing of rubbish
could transmit dengue fever. properly help prevent breeding
Which one is found in Hong of mosquitoes?
Kong?
Question 4
Question 12
Is the following sentence Apart from disposing of
correct?
rubbish carefully and changing
“If a person suffering from the water that hold plants
dengue fever is bitten by a every week, name two other
mosquito, the mosquito will be methods to prevent the
infected and will spread the accumulation of stagnant
virus when it bites another water.
person.”
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Question 5
Question 13
Is the following sentence Name two methods
correct?
mosquito bites prevention.
“Avoid contact with patients
with dengue fever for fear of
infection.”
Question 6
of
Question 14
The best way to prevent What should you do if you
dengue fever is to:
suspect you have contracted
a. receive vaccine
dengue fever?
b. avoid going out
c. eliminate stagnant water
Question 7
Question 15
What disease shares similar What would you do if you find
symptoms with dengue fever? mosquitoes breeding in public
places?
Question 8
Which of the following is not a
symptom of dengue fever?
A. headache and fever
B. running nose
C. pain behind the eyes
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Annex 5 (Teaching material: “Anti-mosquito Operation” Answer Sheet)
Anti-mosquito ambassador’s questions and answers:
Question
1. When (Month/Year) was the first case of locally contracted
dengue fever found in Hong Kong?
2. What insect is the vector of dengue fever?
Suggested Answer
September 2002
Mosquitoes
3. There are two species that could transmit dengue fever.
Which one is found in Hong Kong?
4. Is the following sentence correct?
“If a person suffering from dengue fever is bitten by a
mosquito, the mosquito will be infected and will spread the
virus when it bites another person.”
5. Is the following sentence correct?
“Avoid contact with patients with dengue fever for fear of
infection.”
6. The best way to prevent dengue fever is to:
a. receive vaccine
b. avoid going out
c. eliminate stagnant water
Aedes albopictus
Correct
Incorrect
C
7. What disease shares similar symptoms with dengue fever?
Cold
8. Which of the following is not a symptom of dengue fever?
D. headache and fever
E. running nose
A. pain behind the eyes
B
9. Why should the fish tank water and the aquatic plant water be It takes 7 days for a mosquito
changed at least every 7 days?
to grow from a larva to an
adult.
10. How to prevent water trapping in the old tyres used for Pierce the tyres
anti-bumping?
11. Why does disposing of rubbish properly help prevent Rubbish such as soft drink
breeding of mosquitoes?
cans and empty lunch boxes
can contain water
12. Apart from disposing of rubbish carefully and changing the Tightly cover all water
water that hold plants every week, name two other methods containers, wells and water
to prevent the accumulation of stagnant water.
storage tanks / Keep all drains
free from blockage / Level all
defective ground surfaces to
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
prevent the accumulation of
water
13. Name two methods of mosquito bites prevention:
Wear long-sleeved clothes and
long trousers /Use insect
repellent over exposed parts
of the body when outdoors/
Use mosquito screens or nets
when a room is not
air-conditioned
14. What should you do if you suspect you have contracted Seek medical treatment
dengue fever?
immediately, and inform the
Department of Health
15. What would you do if you find mosquitoes breeding in public Notify adults / Call the Food
places?
and Environmental Hygiene
Department Hotline:
28680000
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Annex 6 (“Follow-up activity”)
Invite your parents and siblings to check together with you the potential mosquito breeding
places at home, and fill in the record form below to prevent dengue fever together.
Observation and record form:
／
Items
1.
Are the drains free from blockage?
2.
Are the containers used for holding
water tightly covered with lids?
3.
Is there stagnant water or uneven area
on the ground surface?
4.
Is the water in fish tanks, flower vases,
and aquatic plant bottles changed at
least every week?
5.
Is the water in the saucers under potted
plants removed?
6.
Are the wastes such as empty lunch
boxes, soft drink cans, and plastic bags
all disposed of in a covered litter bin?
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If it is  in the left
column, please fill
in the follow-up
action.
I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Annex 7 (Teaching material: Teachers’ reference)
“Dengue Fever” Information Sheet
The Department of Health detected local cases of Dengue fever for the first time. It called
on members of the public to be on guard against dengue fever by taking preventive measures
against mosquito breeding and the spread of mosquito-borne diseases.
What is dengue fever?
Dengue fever is an acute viral disease. The incubation period is 3 to 14 days. Symptoms
include high fever for three to five days, severe headache, muscle and joint pain, eye pain,
nausea, vomiting and skin rash. In severe cases, the patient may present with bleeding and
shock, and can die from the disease. Children normally would have milder symptoms than
adults.
How is dengue fever transmitted?
Dengue virus is transmitted to humans through mosquito bites. There is no person to
person spread. The mosquito Aedes albopictus, a vector known to transmit the disease, can be
found in Hong Kong. The mosquito likes to bite people during daytime, especially two hours
after sunrise and a few hours before sunset.
How to prevent dengue fever?
At present, there is no effective vaccine against dengue fever. The best way to prevent
dengue fever is to eliminate pockets of stagnant water that serve as mosquito breeding sites at
home, at schools, workplaces and their vicinity, and to avoid mosquito bites.
"Let's remove stagnant water. Eliminate mosquito for healthy living." Please take the
following precautionary measures at all times to prevent the breeding of mosquitoes and avoid
mosquito bites:
1. Put all used cans and bottles into dustbins with cover.
2. Change water for plants at least once a week, leaving no water in the saucers
underneath flower pots.
3. Cover tightly all water containers, wells and water storage tanks.
4. Keep all drains free from choke.
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
5. Top up all defective ground surfaces to prevent the accumulation of stagnant water.
6. Wear long-sleeved clothes and long trousers.
7. Use insect repellent over the exposed parts of the body.
8. Use mosquito screens or nets when the room is not air-conditioned.
If you notice any mosquito breeding sites in public places, you may call the Food and
Environmental Hygiene Department Hotline 2868 0000.
How to manage dengue fever?
You should seek medical advice from your doctor and inform the Department of Health.
*(The above information is taken from the Department of Health’s “Dengue fever" leaflet. The
related website address is as follows: http://www.chp.gov.hk/en/content/9/24/19.html)
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Annex 8: (Teaching material: Teachers’ reference)
Reference websites:
The Food and Environmental Hygiene Department
Anti-mosquito http://www.fehd.gov.hk/english/safefood/anti-mos2015.html
Campaign
2015
Anti-mosquito http://www.fehd.gov.hk/english/safefood/pest_contol_15anti-mos/00-03.pdf
Pamphlet
Guidebook on http://www.fehd.gov.hk/english/safefood/handbook_prev_mos_breeding.html
Control and
Prevention of
Mosquito
Breeding
Mosquito Pests http://www.fehd.gov.hk/english/safefood/risk-pest-mosquito.html
and their
Control
Understanding http://www.fehd.gov.hk/english/safefood/mosquito_quiz/mos_method.html
Mosquitoes
and Methods
of Mosquito
Prevention and
Control
Prevention of http://www.fehd.gov.hk/tc_chi/safefood/library/pdf_pest_control/mosquito_sc
Dengue Fever- hool_c.pdf
Advice to
Schools
Prevention of http://www.fehd.gov.hk/tc_chi/safefood/library/pdf_pest_control/mosquito_h
Dengue Fever- ouse_c.pdf
Advice to
Housing
Estates
Prevention of http://www.fehd.gov.hk/tc_chi/safefood/library/pdf_pest_control/mosquito_hi
Dengue Fever- ke_c.pdf
Advice to
Picnickers &
Hikers
To Break
http://www.fehd.gov.hk/english/safefood/mosquito_quiz/labyrinth.html
Through the
Anti-mosquito
Labyrinth
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I have learned to prevent Dengue fever  Annexes to learning and teaching activities
Pest Control http://www.fehd.gov.hk/english/safefood/labyrinth_game/school.html
Labyrinth
Game--School
Pest Control
Labyrinth
Game-Housing
Estates
Crossword
Puzzle on
Prevention and
Control of
Mosquitoes
Identify the
Species of
Mosquitoes
Breeding in
Various
Environments
http://www.fehd.gov.hk/english/safefood/labyrinth_game/estates.html
http://www.fehd.gov.hk/english/safefood/mosquito_quiz/crossword2013.html
http://www.fehd.gov.hk/english/safefood/mosquito_quiz/mos_identify_ans.ht
ml
Anti-mosquito http://www.fehd.gov.hk/tc_chi/events/mos/childsong/index.html
children songs
The Department of Health
Dengue Fever
http://www.chp.gov.hk/en/content/9/24/19.html
Personal and
http://www.chp.gov.hk/files/pdf/grp-PE_Hygiene_Survey_Report-en-200
Environmental
4070300.pdf
Hygiene Survey
(Dengue Fever &
SARS)
Evaluation of
http://www.chp.gov.hk/files/pdf/grp-rp-pmpd_Anti-Dengue_Fever_Camp
Anti-Dengue Fever aign_en_20050128.pdf
Campaign
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