AL Chemistry TAS Seminar Personal Experience Sharing

1
AL ChemistryTAS SeminarPersonal Experience
Sharing

• LEUNG Chung-keung
• Group 22 Coordinator

2
Laboratory Setting

• Fixed Seating
• Seating plan with names and photos (Do not
  mismatch)
• Adjacent seating for partners

3
Grouping Students

• Student groups of sizelt10
• Grouping according to seating arrangement
• Number the groups

4
The Yearly Calendar

• 3 to 4 rounds in S.6
• 2 to 3 rounds in S.7
• 4 to 5 experiment occasions of in one round
• Experiments of similar nature

5
Pre-Lab Talk General

• Discuss potential hazards, precautions, safety
  measures, techniques (especially those to be
  assessed), arrangement within group or table

6
Pre-Lab Talk Lab Report

• (Optional) Discuss theory, procedure, data,
  questions, possible discussions

7
Assessment A (1)

• One whole group to be assessed in one occasion
• Groups assessed in order
• No disclosure to the student being assessed in A
  area

8
Assessment A (2)

• Stand still for a short while, then
• Walk around and watch around
• No specific questioning

9
Assessment A (3)

• Note actions and non-actions
• Note speed of work
• Note data collected
• Note handling of apparatus

10
Assessment A (4)

• Note handling of fire and hazardous chemicals

11
Assessment B (1)

• B area to be assessed at the end of one round
  (may be full report)
• Or Groups assessed in same occasions in reversed
  order

12
Assessment B (2)

• Avoid assessing Areas A and B together
• Give grades with clear meanings, but not
  indicating correlation with score, for example

13
Assessment B (3)

• A- No mistake
• B Minor mistake
• B Obvious mistake, but acceptable
• B- Obvious mistake, unexpected

14
Assessment B (4)

• C Overall Unsatisfactory
• C Messy, indicating lack of initiative

15
Assessment C (1)

• Late for experiment
• Late to submit report
• Committing similar error repeatedly
• Cannot collaborate with partner (too passive or
  dominating)

16
Assessment C (2)

• Copying report
• Ignoring advices
• No gown, no goggle
• Taking too much reagent
• Not serious with fire or conc. sulphuric acid

17
Difficulties (1)

• Teaching or Assessing
• Passive students
• Similar reports
• Assessing area A, and laboratory safety

18
Difficulties (2)

• Dangerous experiments Ask the Lab. Tech. to
  walk around as well
• Apparatus broken first aid kits available, lab.
  Attendant must not be away

19
Difficulties (3)

• New experiments must try out first
• Organic experiments high yield and less odour

20
Workload (1)

• Schedule the experiments beforehand
• Communicate with the Lab. Tech.
• Submission of the report on the next working day
• Give more information to students

21
Work Load (2)

• Do not overload with full report
• Can choose to give very simple report or not
  writing any report for excess experiments

22
Work Load (3)

• Do not exaggerate the discussion
• Marking should be done
• Enjoy the experience