HKALE Chemistry TAS Teacher Conference 2008 27 September

HKALE Chemistry TAS Teacher Conference 2008 27 September 2008

Operating Expenses Block Grant (Aided School) Subject & Curriculum Block Grant (Government School) n TAS Grant AL Chemistry: n HK$2, 571 HK$2, 728 n TAS Grant ASL Chemistry: n HK$1, 679 HK$1, 781

Some useful URLs: n Science Education Section, EDB: u n www. edb. gov. hk/cd/sc/ t TAS Corner t http: //resources. edb. gov. hk/cd/science/chemistry/TAS_corner. html Hong Kong Examinations and Assessment Authority: www. hkeaa. edu. hk u SBA Subject Info HKALE Chemistry (A/AS)

Resource Materials for AL/ASL Chemistry

Experimental Techniques in Chemistry n Flame Test n Use of Quickfit Apparatus n Acid-based Titration n Extraction of Active Ingredients http: //cd 1. edb. hkedcity. net/cd/science/chemistry/TAS/etc. htm

Essential Techniques in Chemistry Laboratories n Department of Chemistry, CUHK u http: //www. chem. cuhk. edu. hk/lab_technique. asp t Laboratory Safety t Basic Laboratory Techniques t Chromatographic Techniques t Quantitative Analysis t Spectroscopic Analytical Techniques t Handling of Air Sensitive Compounds t Miscellaneous Instrumental Techniques

Modern Chemical Techniques 2000 http: //resources. edb. gov. hk/chemtech/

Sep 04 Resource Book for Sixth-form Practical Chemistry n Co-produced by u The Chinese University of Hong Kong u u Education and Manpower Bureau Hong Kong Examinations and Assessment Authority

Resource Book for Sixth-form Practical Chemistry n http: //www. chem. cuhk. edu. hk/ssc. htm

Features Twelve new experiments developed locally for learning and teaching of secondary school chemistry n Selected experiments can be carried out using an inquiry-based approach; others can be carried out using traditional approach n

Support features n n n Comprehensive background information Teacher Notes Suggested Solutions to Questions, for teachers’ reference only Student Handout, with digital photos support on the Internet A sample laboratory report

Password for access to chemistry resource materials nrbfsfpc 12 12

Exemplar of Learning and Teaching Activities for Sixth-form Chemistry Curriculum Nov 2005 http: //cd 1. edb. hkedcity. net/cd/science/chemistry/LTA. html

Exemplars n A collection of learning and teaching activities like 1. Datalogging experiments 2. Microscale chemistry experiments 3. Inquiry-based chemistry experiments 4. … …. . .

1. Datalogging experiments Determination of the heat of combustion of alcohols n Kinetics of iodination of propanone by colorimetry n Choice of indicators in acid-base titrations n Acid-base titration curves – double indicators n

2. Microscale chemistry experiments Investigation of the overall order of reaction between H 2 O 2 and iodide in acidic medium n Concentration effect and reaction rate n Determination of KSP of Ca(OH)2 n Determination of KSP of copper(II) iodate n Investigating the effect of changes in ionic concentration on the e. m. f. of a cell n

3. Inquiry-based chemistry experiments Oxygen absorber n Determination of vitamin C in processed fruit drinks n

4. Other Learning Activities Determination of the relative molecular mass of butane n Determination of hardness of water by EDTA titration n

Training courses on practical chemistry n Enhancing Learning & Teaching of Chemistry (July 2006) u Experiments on Contemporary Chemistry Topics u Inquiry-based Experiments http: //cd 1. edb. hkedcity. net/cd/science/chemistry/nss_e. html Solventless Aldol Reaction, Preparation and Optical Properties of Cd. Se Nanocrystals, Chemical Analysis of Gancao Raw Herbs and Commercial Products (Poly. U) Extraction of Caffeine from Tea Leaves and Coffee, Extraction of Limonene from Citrus Fruit Peels, Quantitative Colorimetric Analysis of Phosphate Content in Water, Analysis of Vitamin C in Fruits and Food Products (CUHK) 20

Jun 2008 Implementing Microscale Chemistry Experiments n 10 experiments including: u Determination of the Molar Mass of Gas u Chemical Equilibrium: Formation of Fe(SCN)2+ from Fe 3+ and SCNu Chemical cells u… http: //www. hkbu. edu. hk/~micschem/ 21

Aug 2008 Miniature Practical Chemistry n Synthesis of the Fragrance of Banana n Isolation of Chlorophyll from Spinach n Catalytic Hydrogenation of Methyl Oleate Experiment details available on request. 22

Microscale Quickfit Apparatus #1 Joints: 14/10 n Reflux Set-up: n A Ball Pen Sand Bath Al Heating Block 23

Microscale Quickfit Apparatus #2 n Simple distillation set-up Thermometer Water condenser Receiver Adaptor 24

Thin Layer Chromatography 25

Microscale Column Chromatography 26

Some Useful Websites #1 David W. Brooks’ web site with reference materials for Chemistry Teachers n URL: http: //dwb. unl. edu/ n

Some Useful Websites #1 a n n n {Doing Chemistry} – contains 119 chemistry experiments {LABS (Laboratory Assessment Builds Success)} – contains 18 chemistry experiments {Micro. Scale} – contains 43 microscale chemistry experiments {Small. Scale} – contains 80 chemistry experiments {Becker. Demos} – contains 60 chemistry demonstrations {Source. Book} – contains 40 pdf files on different topics with practical works

Some Useful Websites #2 n RE: ACT (Nuffield Advanced Chemistry) n URL: http: //www. chemistry-react. org/

Some Useful Websites #3 n Practical Chemistry website n URL: http: //www. practicalchemistry. o rg/

Some Useful Websites #4 n Tutorial on the Use of Significant Figures n URL: http: //www. chem. sc. edu/faculty/morgan/ resources/sigfigs/

Some Useful Websites #5 n Experimental error n URL: http: //www. rod. beavon. clara. net/ err_exp. htm

More useful websites: n http: //cd 1. edb. hkedcity. net/cd/science/che mistry/TAS/WEBSITES. HTM 35

Reference Book #1 n Inquiry-Based Experiments in Chemistry n Oxford University Press (2000)

Reference Book #2 n Classic Chemistry Experiments: u One Hundred Tried and Tested Experiments n Royal Society of Chemistry (2000)

Reference Book #3 n Microscale Chemistry Experiments u Experiments in Miniature n Royal Society of Chemistry (1997)

Teacher Assessment Scheme (TAS) in Chemistry n 24 October 2008 (pm) n Course ID: CDI 020081797 n N=40 39

Contact Information n Science Education Section, EDB n Address: Room E 232, East Block, KTESC, 19 Suffolk Road, Kowloon. n Telephone: 3698 3436 n Fax: 2194 0670 n Email: science@edb. gov. hk n Web page: http: //www. edb. gov. hk/cd/sc