NSS CHEMISTRY PUBLIC ASSESSMENT Dr Li Tak Manager

NSS CHEMISTRY PUBLIC ASSESSMENT Dr. Li Tak Manager- Assessment Development Hong Kong Examinations and Assessment Authority

NSS CHEMISTRY PUBLIC ASSESSMENT Chemistry Papers Paper 1 (2. 5 hours) Combined Science (Chemistry Part) Sections Parts Topics examined Questions Section A (18%) Part I Topics 1 -8 24 M. C. Part II Topics 1 -12* 12 M. C. Topics 1 -8 structured questions (47 marks) essay (9 marks) Section B (42%) Part II Paper 2 (1 hour) 20% SBA 20% Total 100% Topics 1 -12* structured questions (28 marks) Topics 13 -15# structured questions 20 marks per elective (40 marks) structured questions (47 marks) essay (9 marks) Papers Section A (12%) One paper only (100 mins) Section B (28%) * Emphasis would be put on Topics 9 -12 # May include contents of Topics 1 -12 Sections 10% SBA 50% Total SBA

Chemistry Papers Paper 1 (2. 5 hours) Sections Parts Topics examined Questions Section A (18%) Part I Topics 1 -8 24 M. C. Part II Topics 1 -12* 12 M. C. Part I Topics 1 -8 structured questions (47 marks) essay (9 marks) Part II Topics 1 -12* structured questions (28 marks) Topics 13 -15# structured questions 20 marks per elective (40 marks) Section B (42%) Paper 2 (1 hour) 20% SBA 20% Total 100% * Emphasis would be put on Topics 9 -12 # May include contents of Topics 1 -12 Public Assessment

Combined Science (Chemistry Part) Questions Sections 24 M. C. Section A (12%) structured questions (47 marks) essay (9 marks) Section B (28%) Papers One paper only (100 mins) 10% SBA 50% Total Public Assessment

NSS Chemistry School-based Assessment SBA TASKS Weighting 20% of Public Assessment Mode Task type Task code Non-practical Related Practical Related Basic Chemical Analysis Experiment Investigative Study Assignment BCA EXPT IS ASSN SBA Requirements

Basic Chemical Analysis Task content (student’s work) VVolumetric Analysis Worksheet DDetection for cations or anions or both Worksheet In-class time 80 mins 20 mins Out-of-school time 0 mins Mark worksheet 10% Means of assessment (teacher’s work) Percentage in SBA Authentication Hand in worksheets in class time SBA

Experiment Task content (student’s work) In-class time Out-of-school time Means of assessment (teacher’s work) Percentage in SBA Authentication • PPerform experiments suggested in the C & A Guide (other than VA & QA) • WWorksheet / simple report / detailed report on experiments performed; AND/OR Quiz on experimental procedures, data manipulation, results interpretation, safety measures, etc. 80 mins 0 – 60 mins Mark worksheet / simple report / detailed report / quiz 30% Hand in the followings in class time: • w. Worksheet / simple report / raw data sheet (if detailed report to be finished at home) AND/OR • q. Quiz SBA

Investigative Study Task content (student’s work) Design Process In-class time 20 hours Out-of-school time 2 hours Means of assessment (teacher’s work) Percentage in SBA Authentication Report MMark proposal AAssess lab/process skills MMark written/oral reports, etc. 10% 10% Allow group work & reporting IIndividual students to be questioned by teacher in class time SBA

Assignment Task content (student’s work) EExamples: DDesign a poster DDevelop a multimedia artifact WWrite a report after visiting industrial plant RRead materials and write a review In-class time 1 hour Out-of-school time 3 hours Means of assessment (teacher’s work) Percentage in SBA Authentication Mark assignments 20% PPreparation performed at home MMain part to be finished in class time MMay ask students some related questions or even require them to make very short presentation, if needed SBA

SBA requirements Number of assessments on SBA tasks S 6 S 5 S 4 BCA EXPT IS ASSN 1 3 1 1 (BCA, EXPT, IS and ASSN should spread out evenly across S 5 and S 6)

SBA requirements S 6 S 5 S 4 Number of Experiments (including BCA & EXPT, but excluding IS) 11 8

NSS Combined Science (Chemistry Part) School –based Assessment SBA REQUIREMENTS Number of assessments on SBA tasks % in SBA S 6 S 5 S 4 VA EXPT ASSN 30% 40% 30% 1 2 Number of Experiments (including VA & EXPT) 1 (VA, EXPT and ASSN should spread out evenly across S 5 and S 6) 7 4