Reading to learn: Experience sharing

1
Reading to learn Experience sharing

• punkc2008_at_gmail.com

2
Agenda

• Experience sharing on role play activity
• Reading to learn
• Learning to read
• Chemistry from Newspaper
• Some remarks

3
Benzene in soft drinks

• When to introduce?
• After learning hydrocarbons?
• Can be related with news
• For NSS, benzene included

4
Powerpoint

• Introducing the activity

5
In case you would like to introduce this activity
in Jan 2008,

• Use more recent articles
• ????????????? ??????? ??????? (??, 28/5/2007)
• ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
  ? (????, 28/5/2007)

(??, 28/5/2007)
6
You may use news regarding bottled water for
similar activity

• ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? (????,
  23/12/2006)
• ?????????? ?????? ?????? (??, 23/12/2006)
• Bottled Waters Contaminated with Antimony from
  PET (24 Jan 2006) http//www.uni-heidelberg.de/pre
  ss/news/news06/2601antime.html (accessed on
  23/12/2006)
• ?????????? (??, 9/4/2007)

7
?????????? (9/4/2007)
8
Advertisement Diamond water

• http//www.youtube.com/watch?vg9JzIBKHIFA

Accessed on 3/1/2008
9
Another topic to consider

• Treated water good for health?
• Related information (Choice 357)
• http//www.consumer.org.hk/website/ws_en/news/pres
  s_releases/p35701.html (accessed on 3/1/2008)
• http//www.consumer.org.hk/website/ws_chi/news/pre
  ss_releases/p35701.html (accessed on 3/1/2008)

10
Time required

• Within the lessons (1 hour 45 minutes)
• 1 period
• For introducing the activity and
• Searching information in the internet
• 2 periods
• 15 minutes group discussion
• 40 minutes role play
• 15 minutes summarise the points
• After the lessons (about 3 hours)
• Searching information and discussion
• Writing the critique (gt 200 words)
• Total (Student) about 5 hours

11
Teachers work

• Introducing the topic (within the lesson)
• Facilitating the forum in the role play (within
  the lesson)
• The critiques (About 2 - 3 hours)

12
Agenda

• Experience sharing on role play activity
• Reading to learn
• Learning to read
• Chemistry from Newspaper
• Some remarks

13
Reading to learn

• The first step would be

Learning to read
Chemistry from newspapers
Scientific literate
14
Learning to read

• ????,?????????,?????. ????,?????
• ????? -????????????

15

• ????,?????????,?????. ????,?????
• ????? -????????????
• ????,????,????,????????????????????????????
• ??? (???)
• ????
• Hg S ?HgS
• Topic related Metallic bond

16
? ? ? ? ? ? ? ? ? ? ? (NSS, Topic I)

• (????, 8/6/2007)
• Physical change vs. chemical change

17
Elements and compounds (NSS Topic I)

• ? ? ? ? ? ? ? ? 400 ?
• (????, 14/12/2006)

18
More examples from newspapers (NSS, Topic II)

• ? ? ? ? ? ? ? ? ? ? (????, 6/12/2006)

19
Related to syllabus (NSS Topic III)

• Newspaper article
• ??????? ????? (??. 9/6/2007)
• ? ? ? ? ? ? ? ? ? ? (????, 9/6/2007)
• ???????????? (??. 10/6/2007)

20
Related with other subjects (NSS Topic III)

• ???
• ?? (Molybdeum)
• ?????????
• ???????????????
• ? (Mo)
• ?????42,???????
• ???????
• ?????

????? http//zh.wikipedia.org/wiki/E992BC 3/1/2
008
21
White gold vs. Platinum (NSS, Topic III)

• ???? ????????? (??, 4/4/2007)
• White gold gold white metal (e.g. Pd, Ag)
• Au750 (75 Au 25 white metals)
• Source http//en.wikipedia.org/wiki/White_gold
  (accessed on 3/1/2008)

22
NSS Topic V (Fuels)

• ?????? ????
• (??, 4/1/2008)

23
Fuels (Section V)
??????? ??????? (??, 10/4/2007) hydrogen as fuel
24
Fuels (NSS Section V)
Source????, 3/1/2008
25
NSS Topic V (fuels)

• ? ? ? ? ? ? ? ? ? ? ? (????, 16/12/2006)
• ???????????? ????????? (??, 16/12/2006 )
• ???????????? (??, 2/4/2007 )

26
Global warming

• ???321??5?? ??30?2???? (??, 5/3/2007)
• ? 321 ? ? ? ? ? ? ? ? ? ? ? ? ? (????, 5/3/2007)
• ????1????????? ????
• ????? (??, 1/4/2007)

27
Global warming

• ? ? ? ? ? ? ? 13 ? ? ? (????, 14/3/2007)
• ?????????????
• ??????????? (??, 14/3/2007)
• Useful references
• Climate change 2001 Synthesis report
• http//www.grida.no/climate/ipcc_tar/vol4/index.ht
  m
• (accessed on 3/1/2008)
• Films
• An Inconvenient Truth
• The Day after Tomorrow

28
Global warming

• 2007?????? (??, 4/1/2008)

29
Global warming

• ???? ??????? ????5?????? (??, 3/4/2007)

30
Global warming

• web tech ? ? ? ? ? ? ? ? ? (????, 9/6/2007)
  07758-225698
• http//news.scotsman.com/entertainment.cfm?id896
  472007 (accessed on 3/1/2008)

31
Issues from media

• TVB Jade (Sunday, 11/11/2007 1200 noon 1245
  p.m.) ???? (City Forum) Waiting Should we
  turn off the engine of the car?

32
News in December 2007
United Nations Climate Change Conference - Bali,
3 - 14 December 2007 http//unfccc.int/meetings/c
op_13/items/4049.php Accessed on 3/1/2008
33
Some more examples (Jun 2007) (NSS Topic V)

• ? ? ? ? ? (????, 9/6/2007)
• ? ? ? ? ? ? ? ? ? ? ?Green Apple ? ? ? ? ? ?
  ? ? ? ? ? (????, 10/6/2007)

34
Topic VII (Chemical cells)
Apple Daily 29/11/2007
35
NSS (Topics V and XI)

• ??????????? (??, 25/12/2006)
• ?????????,??????,?????????
• ? ? ? ? ? ? ? ? (????, 24/12/2006)
• ? ? ? ? ? - ? ? ? ? ? ?, ? ? ? ?, ? ? ? ? ?
• ????????? ???????? ?????????? (??, 24/12/2006)
• ?????? ????29??? (??, 26/12/2006 )
• ?? ?????????????

36
Chemistry in Newspaper (NSS Topics V XI)

• Malachite green sudan red and formaldehyde in
  fishes eggs and shark fins respectively
  trans-fat white gold vs. platinum

Ming Pao, 27/11/2006
Sing Tao Daily, 27/11/2006
Apple Daily, 25/11/2006
37
Related with examination questions

• Malachite green (2007 AL Paper I Question)
• http//en.wikipedia.org/wiki/Malachite_green
  (accessed on 3/1/2008)
• http//zh.wikipedia.org/wiki/E5AD94E99B80E
  79FB3E7B6A0 (accessed on 3/1/2008)

38
Trans fat (NSS, Topic XI)

• ? ? ? ? ? ? ? ? ? ? (????, 15/3/2007)
• ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
  ? ? (????, 14/3/2007)
• ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? (????, 8/6/2007)

39
News in Oct 16 2007 (Choice 372)
40
? ? ? ? ? ? ? ? ? ? (????, 26/10/2007) Trans-fat
to be labelled?
41
Trans fats - Chemical knowledge

• Trans fats partially hydrogenated vegetable
  oils
• Cholesterol
• Hydrogenation
• Useful websites for trans-fats
• http//www.fda.gov/FDAC/features/2003/503_fats.htm
  l (accessed on 3/1/2008)
• http//www.rsc.org/Publishing/ChemScience/Volume/2
  007/02/trans_fat_free_future.asp (accessed on
  3/1/2008)

42
Trans fats
http//www.people.umass.edu/ktheis/tfa.htm
accessed on 3/1/2008
43
Cholesterol (NSS, Topic XI)
http//en.wikipedia.org/wiki/Cholesterol
(accessed on 3/1/2008)
44
Drugs (NSS, Topic XI)

• ? ? ? ? ? ? ? ? ? ? ? ? (????, 14/3/2007)
• Phentermine
• Amfepramone

http//en.wikipedia.org/wiki/Phentermine accessed
on 3/1/2008
http//www.chemindustry.com/chemicals/681059.html
accessed on 3/1/2008
45
Drugs (NSS, Topic XI)

• Tamiflu 2 Jun 2006 Sing Tao Daily
• Oseltamivir
• http//en.wikipedia.org/wiki/Oseltamivir
• (accessed on
• 3/1/2008)

46
Drugs (NSS, Topic XI)

• ??????K??? (??, 4/1/2008)

47
Other dangerous drugs GHB (Gamma
hydroxybutyrate, ??? )

• Originally used as a sleep-aid

48
????? (??, 29/12/2006) (NSS, Topic XI)

• Related news ??????????? (??, 29/12/2006)

49
More examples from newspapers (NSS Topic XI)

• ????????? ????? (??, 16/12/2006)
• ?????????? ??3?? ????????? (??, 23/12/2006)
• Nitrosamines
• R2N-NO
• Nitrites
• Links with instrumental techniques e.g. MS (NSS
  Topic XV)

50
More examples in newspapers (NSS Topic XI)

• ??????? ???????
• (??, 8/12/2006)
• ??? (Dioxin)
• ???(DDT)
• ???(Dieldrin)
• ??????(PCBs)

Source (PCB) http//www.epa.gov/toxteam/pcbid/def
s.htm accessed on 10/6/2007
51
More examples from newspaper (NSS Topic XI)

• ? ? ? ? ? ? ? ? ? ? (????, 27/12/2006 )
• Nicotine C10H14N2.

Source http//www.chm.bris.ac.uk/motm/nicotine/E-
propriete.html accessed on 10/6/2007
52
More examples in using newspapers (NSS Topic XI)

• ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? (????,
  13/11/2006)
• Functional groups

http//www.chemexper.com/index.shtml?mainhttp//w
ww.chemexper.com/search/cas/85-86-9.html
accessed on 3/1/2008
53
Some more examples (Jun, 2007) (NSS, Topic XI)

• ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? (????,
  11/6/2007)
• ????????? ?????????6? ????? (??, 11/6/2007)
• methyl salicylate

54
Polymers (Topic XIV)

• ??PAAG????? (??, 28/12/2006)
• PAAG????? (????, 14/4/2006)
• Polyacrylamide Gel
• (? ? ? ? ? ?)
• Acrylamide Monomer
• (? ? ? ? ? ? ?)
• 30????? ?PAAG???? (??, 12/3/2007)
• PAAG??8???????? (??, 5/4/2007)
• ? ? ? ? ? ? ? ? ? ? ? ? (????, 28/12/2006)
• ?????
• ? ? ? ? ? ? ? ? ? ? (????, 28/12/2006)
• SO2

55
PAAG

• Acrylamide? (Choice 372, October 15 2007)
• Acrylamide is a chemical that is used to make
  polyacrylamide materials. Polyacrylamide is used
  in the treatment of drinking-water and waste
  water where it is used to remove particles and
  other impurities ... Polyacrylamide materials
  contain very small amounts of acrylamide.
• Problem?
• Acrylamide is known to cause cancer in
  animals
• Source http//www.who.int/foodsafety/publication
  s/chem/acrylamide_faqs/en/
• Related articles
• ??????(Acrylamide)?????????! Sciscape???? Apr 18
  2004 http//www.sciscape.org/news_detail.php?news_
  id1443
• Mechanism Underlying Formation of Possible Food
  Carcinogen Revealed Oct 2 2002 Scientific
  American http//www.sciam.com/article.cfm?chanIDs
  a003articleID000CC5E5-015A-1D9A-815A809EC5880000
  

All can be accessed on 3/1/2008
56
Explosives (NSS Topic XV)

• ????????3? ???????????? (??, 28/12/2006 )
• ???????(TDI)
• ????????? (??, 11/3/2007)
• ???????????? (??, 3/4/2007 )

57
TDI (NSS, Topic XV)

• ????????3? ???????????? (??, 28/12/2006 )
• ???????(Tolylene diisocyanate,TDI)
• Analysis through GC-MS Source
  http//scholar.ilib.cn/Abstract.aspx?Afxcsxb2001
  04020 Accessed on 3/1/2008

Source http//www.answers.com/topic/isocyanate-2
accessed on 3/1/2008
58
Some useful urls search engine

• Centre for Food Safety
• http//www.cfs.gov.hk/english/press/press_e.html
• http//www.cfs.gov.hk/tc_chi/press/press_c.html
• Department of Health
• http//www.dh.gov.hk/tc_chi/press/press.html
• http//www.dh.gov.hk/english/press/press.html
• Consumer Council
• http//www.consumer.org.hk/website/ws_en/news/pres
  s_releases/list.html
• http//www.consumer.org.hk/website/ws_chi/news/pre
  ss_releases/list.html

All can be accessed on 3/1/2008.
59
Local sources (as to date)
20080103

• ?? for two days
• http//www.mingpaonews.com/20080104/gbindex.htm
  Local news
• ???? from Jan 2002 onwards
• http//appledaily.atnext.com/template/apple/archiv
  e.cfm?
• HKASME
• Yearly publications
• Wise news
• http//wisenews.wisers.net/index.jsp

All accessed on 3/1/2008
60
Newspaper (free)

• BBC News http//news.bbc.co.uk/ (accessed on
  3/1/2008)

61
Poster from Customers excise Department
62
Poster from Customers excise Department
(http//www.isomerdesign.com/Cdsa/scheduleUN.php?s
chedule3sectionALLstructureC accessed on
28/12/2007)
63
Other Resources
2 7 minutes of video clips of various topics

• BBC Motion Gallery

64
Agenda

• Experience sharing on role play activity
• Reading to learn
• Learning to read
• Chemistry from Newspaper
• Some remarks

65
Some remarks

• 1) Chemophobia

Penny Le Couteur 2005 ChemEd
Natural is good man-made is bad
66
Some remarks

• 2) Generic skills mastered Knowledge gained
• Collaborative
• Critical thinking
• Communication (verbal written)
• And
• Knowledge acquisition
• Knowledge transfer
• Knowledge integration
• ..

67
Some remarks

• 3) Worth?
• Thinking in different perspectives (divergent)
• Familiarise the students with unfamiliar
  situations
• Since articles are chemistry centred explore
  more
• Teachers work reasonable

68
Some remarks

• 4) Other issues may be discussed
• So many poisonous food substances Why???
• May be
• We live in a world so rich that global income
  is more than 31 trillion a year. In this world,
  the average person in some countries earns more
  than 40,000 a year. But in this same world, 2.8
  billion people more than half the people in the
  developing countries live on less than 700 a
  year. Of these, 1.2 billion earn less than 1 a
  day.
• Source http//www.worldbank.org

69
Some remarks

• 5) Aware of fake science Alkali metals water
• http//video.google.com/videoplay?docid-213426665
  4801392897 (accessed on 3/1/2008)

70
Some remarks

• P.805 Second last paragraph
• admitted that in an episode claiming to show
  a bathtub of water being blown up by caesium and
  rubidium, explosives were used instead.
• Sky One If youre expecting to see the Open
  University, youre on the wrong channel
• its priority in executing them was
  entertainment.
• Nature Volume 445, 22 Feb 2007.

71
Some remarks

• 6) Not only for NSS
• Also suitable for HKCEE HKAL
• Can prepare them for examinations
• At least scientific literate

72
Final remark

• Get professional support from EDB.

73
Thank You