hkdse chemistry and combined science (chemistry part ......hkdse chemistry and combined science...

HKDSE Chemistry and Combined Science (Chemistry part)

SBA Teachers’ Conference (2018/2019)

Date: 20 October 2018

Venue: Heung To Middle School

Program

9:00 – 9:15 Registration

9:15 - 9:25 Introduction

9:25 - 9:45 Supervisors’ Remarks

9:45 - 10:00 SBA Arrangement

10:00 - 10:30 Sharing on SBA

10:30 - 10:45 Break

10:45 - 11:45 Group Meeting

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Materials available on HKEAA web page (http://www.hkeaa.edu.hk)

1. Handbook for School Leaders on SBA

2. SBA Teachers' Handbook

3. SBA Sample Tasks

4. Frequently Asked Questions

Materials related to Mark Submissions (https://www.hkdse.hkeaa.edu.hk)

1. User Manual

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Resource Materials

A. Learning and Teaching Resources for Senior Secondary Chemistry and Combined Science (Chemistry part),

Science Education Section, EDB (http://cd1.edb.hkedcity.net/cd/science/chemistry/resources_by_topics/index.html)

B. Learning and Teaching Resources on Practical Chemistry

Resource materials Websites

1. Inquiry-based Chemistry Experiments (CUHK & EDB,

2002)

2. Learning and Teaching Activities for the Revised Sixth

Form Chemistry Curriculum (EDB, 2005)

3. Investigative Study in Chemistry – Exemplars of Learning and Teaching Activities (HKUST, EDB & HKEAA, 2009)

http://cd1.edb.hkedcity.net/cd/science/chemistry/teaching_

material.html (English)

http://cd1.edb.hkedcity.net/cd/science/chemistry/teaching_

material_c.html (中文)

4. Workshops on Miniature Practical Chemistry (HKUST &

EDB, 2008)

http://cd1.edb.hkedcity.net/cd/science/chemistry/training_c

ourse.html

5. Resource Book for Sixth-Form Practical Chemistry

(CUHK, EDB & HKEAA, 2004)

http://www.cuhk.edu.hk/chem/en/resources/sscorner.html

6. Experiments of Microscale Organic Chemistry for

Secondary Schools (HKUST & EDB, 2011)

https://goo.gl/XhLEvv

7. Experiments of Microscale Analytical Chemistry (HKUST

& EDB, 2011)

https://goo.gl/sasp2X

8. Practical Activities for Effective Learning, Teaching and

Assessment of Chemistry

(CUHK & EDB, 2017)

http://cuhk.edu.hk/proj/science_resource/CHEM04/internal

9. 高中化學探究研習 (教育局，2014) https://www.hkedcity.net/etv/resource/207401800 10. Chemistry Experimental Techniques (CUHK & EDB,

2013)

http://minisite.proj.hkedcity.net/chemtech/eng/index.html

11. Basic Laboratory Techniques, Department of Chemistry,

CUHK

http://www.cuhk.edu.hk/chem/en/resources/basic.html

C. Other Useful Websites

1. NSS Chemistry Edblog (http://edblog.hkedcity.net/nsschem/) (Search with “TLC”, “benzoic acid”, “chlorophyll”, “rate of

reaction”)

2. Practical Chemistry of Nuffield Foundation (http://www.practicalchemistry.org/)

3. Royal Society of Chemistry Channel in YouTube (http://www.youtube.com/user/wwwRSCorg)

4. CLEAPSS Channel in YouTube (http://www.youtube.com/user/CLEAPSS)

http://www.hkeaa.edu.hk/DocLibrary/SBA/HKDSE/SBAhandbook-SchoolLeaders-E-300609.pdfhttp://www.hkeaa.edu.hk/en/sba/sba_hkdse_elective/dse_subject.html?7&2http://www.hkeaa.edu.hk/en/sba/sba_hkdse_elective/dse_subject.html?7&3http://www.hkeaa.edu.hk/en/sba/sba_hkdse_elective/dse_subject.html?7&6http://www.hkeaa.edu.hk/DocLibrary/SBA/HKDSE/SBAhandbook-SchoolLeaders-E-300609.pdfhttp://cd1.edb.hkedcity.net/cd/science/chemistry/resources_by_topics/index.htmlhttp://cd1.edb.hkedcity.net/cd/science/chemistry/teaching_material.htmlhttp://cd1.edb.hkedcity.net/cd/science/chemistry/teaching_material.htmlhttp://cd1.edb.hkedcity.net/cd/science/chemistry/teaching_material_c.htmlhttp://cd1.edb.hkedcity.net/cd/science/chemistry/teaching_material_c.htmlhttp://cd1.edb.hkedcity.net/cd/science/chemistry/training_course.htmlhttp://cd1.edb.hkedcity.net/cd/science/chemistry/training_course.htmlhttp://www.cuhk.edu.hk/chem/en/resources/sscorner.htmlhttps://goo.gl/XhLEvvhttps://goo.gl/sasp2Xhttp://cuhk.edu.hk/proj/science_resource/CHEM04/internalhttps://www.hkedcity.net/etv/resource/207401800http://minisite.proj.hkedcity.net/chemtech/eng/index.htmlhttp://www.cuhk.edu.hk/chem/en/resources/basic.htmlhttp://edblog.hkedcity.net/nsschem/http://www.practicalchemistry.org/http://www.youtube.com/user/wwwRSCorghttp://www.youtube.com/user/CLEAPSShttps://www.hkdse.hkeaa.edu.hkhttp://www.hkeaa.edu.hk

Chemistry & C S (Chemistry)

SBA Teachers’ Conference

(20 Oct 2018)

1

Supervisors’ Remarks

Chemistry : 13214 students (430 schools) submitted SBA marks CS(Chem) : 743 students (59 schools) submitted SBA marks

Moderation (statistical methods and professional judgment) Chemistry :53.5% of schools within expected range

31.6% of schools higher than expected 14.9% of schools lower than expected

CS(Chem) : 64.4% of schools within expected range 18.7% of schools higher than expected 16.9% of schools lower than expected

For those higher or lower than expected, majority only deviate slightly from expected range

2

General Remarks on SBA (1 of 2) Type of Assessment Tasks:

V.A. – for training and assessing basic skills for volumetric analysis

Q.A. – for training and assessing of thinking skills, simple tests on cations, and/or anions (minimum requirement) Note:

Scope and depth of Q.A. need not be similar to those of the AL Chemistry Practical Examination.

Should NOT include experiments like “identification of functional groups of some organic compounds”

EXPT - similar to those suggested in the Curriculum and Assessment Guide, For ‘Chemistry’, they should be other than V.A. and Q.A. For ‘CS(Chem)’, they should be other than V.A.

3

General Remarks on SBA (2 of 2)

• Products:

• Worksheet, quiz and brief / detailed laboratory report, etc. are all acceptable.

• Writing detailed laboratory reports is definitely a good training.

• Feedbacks to students - for facilitating students’ improvement. Students should be encouraged to reflect on / discuss with teachers to understand their own strengths and areas for improvement.

4

Assessment

Students’ Written Works (Reports, worksheets, quizzes)

Basic requirement of SBA

Performance in Carrying Out Experiments

Optional, recommended if deemed appropriate

The related marks should be indicated clearly on the submitted students’ works samples

Students’ Attitude Should NOT be assessed in SBA

5

More on Assessment • Some observations for deliberations:

• Narrow mark distribution within a class

• Some extreme cases, most students got very high marks / most students got very low marks

• Recommendations:

• Use marking guidelines / marking schemes

• Teachers may modify the task requirements / worksheet items according to the general abilities of the students in a class, for example,

• add some challenging items for classes of more able students, or

• introduce some straight forward items for classes of less able / less motivated students 6

Still on Assessment • Teachers can use worksheets from textbooks or

tasks provided by publishers, but

• ensure the students cannot obtain the standard/reference answers before the SBA assessment

• modify the standard worksheets

• use other means to enhance validity and reliability

• Teachers can use quizzes (“SBA Quiz”), but the assessment items should closely related to a performed experiment.

7

Still More on Assessment • Marks vs Grades

• Marks (10,9,8, … 1) Preferred / Recommended

• Grades (A, B, C, … Acceptable (need to have a mark-grade conversion tables)

• For schools with more than one chemistry classes:

• Teachers should perform school-based standardization, to standardize the SBA tasks and marking standards.

• Students in a school should be assessed on tasks of similar nature, complexity and required

8skills.

Remarks on Experiment List (1/2) • Please use the template provided

• Teachers may use their own format, but please include sufficient amount of details for communication

• Include all the experiments performed, not only those assessed.

9

Remarks on Experiment List (2/2)

• Avoid

• Late submissions

• Incomplete list e.g. only titles of assessed experiments

• Include all experiments performed in the list

• Uninformative experiment titles

• E.g. QA01, VA01, EXPT05

10

Remarks on Scanned Reports • Avoid

• Missing reports

• Missing pages in the scanned PDF file, e.g. all even pages were missing

• Only students’ answers on the worksheet, without details of experiments

• Advise your students to avoid

• faint handwritings – e.g. pencils / light-green pens

11

SBA work plan for 2018-19

Submission requirements in 2018-19 (Ref: School circular in late Sept)

Month/Year Events

20 Oct 2018 SBA annual conference

Sep 2018 – Jun 2019 S6 and S5 SBA activities to be conducted by schools

9 Jan – 30 Jan 2019 Online Submission of SBA marks, Student work samples, and ‘S5 and S6 Lists of experiments’ for 2019 Exam (Use experiment list template provided at HKEAA

website: SBA Forms SBA Mark Templates)

Mar – May 2019 Moderation of S6 SBA marks by the HKEAA

May–Jun 2019 Email ‘S5 Lists of experiments for 2020 Exam’ to District Coordinator

Jul 2019 Release of HKDSE results

Sep – Oct 2019 Provision of feedback on the outcome of the SBA moderation of 2019 HKDSE to schools

12

S5 + S6 (2019 Exam)

Requirements

13

School

Year

Chemistry

Minimum number of

assessment marks

Subject

weighting

S5 2 10%

S6 2 10%

Over the two years of S5 and S6, there should be at least one mark for Volumetric Analysis (VA), one mark for Qualitative Analysis (QA) and two marks for Other Experiments (EXPT).

Investigative Study (IS) can be done in lieu of Other Experiments (EXPT). In this case, one mark on ‘planning’ and one mark on ‘process and reporting’ should be awarded. These two marks can satisfy the minimum requirement for Other Experiments (EXPT).

14

On-line Mark Submission Screen ---Chemistry

S5 (10%) S6 (10%)

Student Name V V Q Q E E V Q E E E E

(Note: V= VA, Q = QA, E = EXPT) (Note : maximum mark per task : 10)

15

Chemistry

In SBAS, system checks: At least any 2 marks per student in S5 At least any 2 marks per student in S6 At least 1V, 1Q, 2E per student in S5+S6

16

School

Year

Combined Science (Chemistry)

Minimum number

of assessment

marks

Subject weighting

S5 1 5%

S6 1 5%

Over the two years of S5 and S6, there should be at least one mark for Volumetric Analysis (VA) and one mark for Other Experiments (EXPT).

17

On-line Mark Submission Screen ---Combined Science (Chemistry)

S5 (5%) S6 (5%)

Student Name V V E V E E

(Note: V= VA, E = EXPT) (Note : maximum mark per task : 10)

18

Combined Science (Chemistry)

In SBAS, system checks: At least any 1 mark per student in S5 At least any 1 mark per student in S6 At least 1V, 1E per student in S5+S6

19

Requirements for 2020 Exam (Same as 2019)

Please refer to 2020 SBA Teachers’ Handbook.

HKEAA will inform schools requesting teachers to email to

District Coordinators the ‘List of Experiments Performed in S5’ at around May 2019.

20

School-based Assessment System (SBAS)

S5 + S6 Submissions

(2019 Exam)

21

What to submit

S5 and S6 Marks

Student Work samples

S5 and S6 Experiment Lists

22

When to submit

9 Jan – 30 Jan 2019

SBA Marks, Student Work and Teacher Document (Expt. Lists) are submitted in the same period.

Please submit SBA marks to principal for endorsement in advance to allow sufficient time for completion of other submissions.

23

Points to note before submission

Formal approval from HKEAA is required for exemption of SBA marks. If a student has fulfilled the minimum requirements, exemption is not required. No need to enter any symbol in the respective mark cell(s).

24

Overview of the SBA submission process

School

Administrator

Subject

Panel

(1st stage)

• Create

Subject

Teacher

• Input SBA marks

Subject

Panel

(2nd stage)

• Endorse SBA

Principal

• Endorse SBA

Subject

Panel

(Last stage)

• Create/Update login accounts for teachers and panels

• Indicate the SBA subjects being offered in this school year

• Assign SBA subjects to panels and teachers

teaching groups

• Assign students to teaching groups

• Assign teachers to teaching groups

(online input or batch input using the mark template)

• Endorse SBA marks of responsible teaching group(s)

• Submit SBA Marks to Panel

marks submitted by all teachers of a subject

• If necessary, return to teacher for amendments

• Submit SBA Marks to Principal

marks for all subjects

• If necessary, return to panel to handle

• Submit SBA Marks to HKEAA

• Upload Student Work of all selected students

• Upload Teacher Document if required

26

Reminders Only student work with marks

submitted to HKEAA are required.

The work for each student should be zipped to one single file if the work contains more than one file.

27

Reminders Uploading space allowed for each student work:

15 MB 28

Reminders If scanning needed is, advise students to use A4

paper to do their homework.

If one or two reports were lost, mark in the first page of the student work file, e.g. Chan Tai Man has lost report #2 and #5.

Attach questions/guidelines in the student work file for the convenience of checking by District Coordinators.

29

Reminders Teacher Document for Chemistry, means

S5+S6 List of Experiments performed.

Please make use of the template provided at HKEAA website:

SBA Forms SBA Mark Templates

30

Request for a change of student(s) for work submission If the work of any chosen student cannot be located, or

involves any irregularities (such as mark penalty being imposed due to partial plagiarism or late submission), the Subject Panel should contact the SBA Team at 3628 8068.

Subject Panel should download the ‘Change of Student Work for SBA Work Submission’ form from ‘Mark Reports’ under ‘Reports’ menu.

31

Request for a change of student(s) for work submission

Complete the section for the school and fax the form to 3628 8091.

After confirming the arrangement, the HKEAA will fax the amended form to the school for school’s record.

33

User Manual Available on HKEAA website by November 2018

(https://www.hkdse.hkeaa.edu.hk)

35

https://www.hkdse.hkeaa.edu.hk

Enquiry Hotlines General Issues: 3628-8860 3628-8070

Subject Matters: 3628-8068 3628-8064

36

Briefing Sessions (tentative) Jan 2019

Enrollment: Details will be sent to schools later

37

Hands-on Training Workshops

Date: Jan 2019

Duration: 1.5 hour per session

Mode:

Practice using the SBAS to process simulated SBA marks

Technical assistance provided on spot

Details: coming school circular

38

• Accommodation • Applying for exemption (if applicable)

39

• related questions

•

• Contact the SBA Team of the HKEAA for questions related to logistical arrangements

Discuss with your District Coordinator for subject-

Explain to the student the accommodation, or why no accommodation is necessary

• Mark in the student work the kind of accommodation / exemption involved if being selected to be submitted to the HKEAA

43

LEARNING AND TEACHING RESOURCES ON PRACTICAL FOR

CHEMISTRY AND COMBINED SCIENCE (CHEMISTRY PART)

Sophia SL Cheng Science Education Section,

EDB

Learning and Teaching Resources for Senior Secondary Chemistry and Combined Science (Chemistry Part) (http://cd1.edb.hkedcity.net/cd/science/che mistry/resources_by_topics/index.html)

http://cd1.edb.hkedcity.net/cd/science/che

Example 1

Pre-lab assignment +

Volumetric analysis using HCl(aq) and Na2CO3(aq)

INTEGRATE SBA WITH LEARNING AND TEACHING

Topic XV(d) Instrumental2016 HKDSE Paper II Q3(b) analytical methods

The determination of copper in brass Objective • To determine the amount of copper in a brass sample

Chemical reactions 3Zn + 2NO3- + 8H+ 3Zn2+ + 2NO + 4H2O 3Cu + 2NO3- + 8H+ 3Cu2+ + 2NO + 4H2O 2NO + O2 2NO2

The determination of copper in brass

Conc. of sample Cu2+(aq) = 0.281 M Mass of Cu in brass solution = 0.178 g % by mass of Cu in brass sample = 59.3%

2018 HKDSE Paper IB Q6(b) Topic VIII(b) Standard enthalpy changes of reactions

Determination of the Heat of Combustion of Alcohols

Some more practical activities

Mole Concept and Stoichiometry (Topic III c) ◦ Determining the Stoichiometry of Reaction Between

ClO- and S2O32- / OH-

Rate of Reaction (Topic IX b) ◦ Reaction of Phenolphthalein in NaOH solution (with the

use of datalogger) Microscopic World II (Topic VI b) ◦ Evaporation and Intermolecular Attractions Analytical Chemistry (Topic XV b) ◦ Thin-layer Chromatography of Painkillers

Investigative Study ◦ Assessment requirement for Chemistry:

◦ Investigative Study can be done in lieu of Other Experiments. One assessment on ‘proposal’ and one assessment on ‘process and report’ should be performed. These two assessments can satisfy the minimum requirement for Other Experiments.

Investigative Study in Chemistry – Exemplars of Learning and Teaching Activities (HKUST, EDB & HKEAA, 2009) School-based Assessment Sample Tasks

How to make it hot?

◦ To develop a self-heating container which could be used to heat up the foodstuff to 60oC within a few minutes and maintains the temperature for 15 minutes

◦ http://www.hkeaa.edu.hk/tc/sba/sub_info_sba/dse_subject.html?7&4

http://www.hkeaa.edu.hk/tc/sba/sub_info_sba/dse_subject.html?7&4

Chemistry Experimental Techniques

http://minisite.proj.hkedcity.net/safetyonline/eng/index.html

http://edblog.hkedcity.net/nsschem

References and resources for Chemistry, Science Education, EDB (http://www.edb.gov.hk/en/curriculum-development/kla/science-edu/ref-and-resources/chemistry.html)

Curriculum Documents, Science Education, EDB (http://www.edb.gov.hk/en/curriculum-development/kla/science-edu/curriculum-documents.html)

Contact information Dr Raymond Fong Tel: 3698 3436 Email: [email protected]

Tim Tse Tel: 3698 3438 Email: [email protected]

Sophia Cheng Tel: 3698 3439 Email: [email protected]

化學及組合科學(化學部分) 二零零七年 (二零一八年六月更新) 註：更新課程由 2018/19 學年在中四級開始推行。

https://www.edb.gov.hk/cd/sc

課程文件教師指南 https://goo.gl/jxnwQA https://goo.gl/4HhYab

高中化學主要學與教資源網站

資源(按課題分類) 化學實驗技巧 https://goo.gl/2A8ySe https://goo.gl/989EpN

化學科教學交流平台中學科學科目常用英漢辭彙 https://goo.gl/YWUfX https://goo.gl/6ieoFA

https://goo.gl/6ieoFAhttps://goo.gl/YWUfXhttps://goo.gl/989EpNhttps://goo.gl/2A8ySehttps://goo.gl/4HhYabhttps://goo.gl/jxnwQAhttps://www.edb.gov.hk/cd/sc

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