Teachers

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Teachers

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Title: Form 6 Physical Chemistry Author: Chow kwok Lim Last modified by: t58nkb Created Date: 1/8/2001 6:27:11 PM Document presentation format: – PowerPoint PPT presentation

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Title: Teachers

1
Teachers Assessment Scheme(Chemistry)Experience
Sharing

18 10 - 2007
NG Kai Bun, Anthony
nkb_at_fss.edu.hk

2
Teacher Assessment Scheme

What ?
Why ?
How ?
When ?
Who ?

3
Belief

Chemistry is a practical subject
Theory ?close linking? practical
Learning through experiments

Practical chemistry can be used to consolidate
the knowledge of chemistry.
TAS allows room for other learning activities.
TAS 20 of Examination marks of whole subject.

5
Problem concerned

Fair????
How to make the greatest benefit to our students
from TAS

6
Proper arrangement

School authority (time-table)
(a) 3-periods (afternoon)
(b) 2-periods (afternoon)
Students belief
Colleagues co-operation

7
Problems caused from TAS

For students
Too much experiments (compared with A-L Biology
or Physics) complained by students
Work load too large (Report Writing)
Fair assessment ??

For teacher
Limited time in teaching
Limited time in marking experiment reports
How to choose some good experiments for our
students
Poor learning behavior

9
How to run A-L Chemistry TAS smoothly ????

Let students fully understand the whole picture
of TAS
? number of experiments required
? assessment what
how
when
who
which

10
The Whole Picture of AL Chemistry
Chemistry
AL Chemistry (??????)
Advanced Level Chemistry builds on (??)the
foundations (??) of the HKCE chemistry knowledge
11

Chemistry Result
Written Examination Practical Examination
(80 of the Subject Mark) (20 of the Subject
Mark)
Paper I Paper II TAS
(100) (100) (Teachers Assessment
Scheme)
(?????)

12
(No Transcript)
13
Good arrangement of experiments (F.6)

Experiments are divided into 5 main areas
4 Quantitative Analysis (1A 1B)
4 Qualitative Analysis (1A 1B)
4 Kinetic (1A 1B)
4 Equilibrium (1A 1B)
4 Other (1A)

14
Strengthening the confidence of students

Teach them how to write a good report
Good preparation work for experiment
? pre-lab worksheet
? pre-lab oral questions
? group presentation and discussion
Project

15
Strengthening the confidence of teachers

Well prepared for experiment (pre-lab)
Collecting interesting / useful experiment manual
? cdi (chemistry)/universities website
? book suppliers
? reference book
? attending seminars
? sharing experience with other teachers

16
Project Problem???

What kinds of topic for our students ??
? various topics chosen by students
? one main topic assigned by teachers

17
Guide line

Not increasing extra workload too much
Fair assessment

18
Seeking resources

from Hong Kong Chemistry Olympid
from seminars / workshops (CDI/HKEAA/Universities
etc..)
Resources books (CDI)
Journals (oversea or mainland etc)

19
Some authentic investigations are meaningful to
students (CDI)

Investigation of the different brands of drain
cleaners.
Study the vitamin C in fruits and drinks.
Study the oxygen absorber in packages of moon
cakes etc ....

20
Project Base Learning (case study)

To develop an interest in and enjoyment from the
study of Chemistry
To identify problems from given situation and
devise method to test them.
To explore students scientific insight.

21
Students work

to read the text books / reference books
to discuss the case
to identify the problems
to devise the method
to carry on spot test and do experiment in
laboratory

22
Teachers work

to give some comments to the methods designed by
students
to prepare the apparatus and test reagents
to seek the help from university staff

23
Fieldtrip river water analysis
24
Doing experiments in University
25
Explore the scientific insight trace analysis
of heavy metal
26
Students feedback