NSS CHEMISTRY & COMBINED SCIENCE (CHEMISTRY PART) PUBLIC ASSESSMENT Dr. Li Tak Man Manager- Assessment Development Hong Kong Examinations and Assessment Authority
Papers SectionsParts Topics examined Questions SectionsPapers Paper 1 (2.5 hours) Section A (18%) Part ITopics M.C. Section A (12%) One paper only (100 mins) Part IITopics 1-12*12 M.C. Section B (42%) Part ITopics 1-8 structured questions (47 marks) essay (9 marks) structured questions (47 marks) essay (9 marks) Section B (28%) Part IITopics 1-12* structured questions (28 marks) Paper 2 (1 hour) 20% Topics # structured questions 20 marks per elective (40 marks) SBA20% 10%SBA Total100% 50%Total Chemistry Combined Science (Chemistry Part) NSS CHEMISTRY PUBLIC ASSESSMENT * Emphasis would be put on Topics 9-12 # May include contents of Topics 1-12 SBA
Chemistry PapersSectionsParts Topics examined Questions Paper 1 (2.5 hours) Section A (18%) Part ITopics M.C. Part IITopics 1-12*12 M.C. Section B (42%) Part ITopics 1-8 structured questions (47 marks) essay (9 marks) Part IITopics 1-12* structured questions (28 marks) Paper 2 (1 hour) 20% Topics # structured questions 20 marks per elective (40 marks) SBA20% Total100% * Emphasis would be put on Topics 9-12 # May include contents of Topics 1-12 Public Assessment
Combined Science (Chemistry Part) Public Assessment QuestionsSectionsPapers 24 M.C. Section A (12%) One paper only (100 mins) structured questions (47 marks) essay (9 marks) Section B (28%) 10%SBA 50%Total
NSS Chemistry School-based Assessment SBA TASKS Weight- ing 20% of Public Assessment ModePractical Related Non-practical Related Task type Basic Chemical Analysis Experiment Investigative Study Assignment Task code BCAEXPTISASSN SBA Requirements
Basic Chemical Analysis Task content (student’s work) Volumetric Analysis Worksheet Detection for cations or anions or both Worksheet In-class time80 mins20 mins Out-of-school time0 mins Means of assessment (teacher’s work) Mark worksheet Percentage in SBA10% Authentication Individual work Hand in worksheets in class time SBA
Experiment Task content (student’s work) Perform experiments suggested in the C & A Guide (other than VA & QA) Worksheet / simple report / detailed report on experiments performed; AND/OR Quiz on experimental procedures, data manipulation, results interpretation, safety measures, etc. In-class time80 mins Out-of-school time0 – 60 mins Means of assessment (teacher’s work) Mark worksheet / simple report / detailed report / quiz Percentage in SBA30% Authentication Allow group work but individual students should hand in worksheet / simple report / raw data sheet (if detailed report to be finished at home) in class time AND/OR quiz SBA
Investigative Study Task content (student’s work) DesignProcessReport In-class time20 hours Out-of-school time2 hours Means of assessment (teacher’s work) Mark proposal Assess lab/process skills Mark written/oral reports, etc. Percentage in SBA10% Authentication Allow group work & group reporting Individual students to be questioned by teacher in class time SBA
Assignment Task content (student’s work) Examples: Design a poster Develop a multimedia artifact Write a report after visiting industrial plant Read materials and write a review In-class time1 hour Out-of-school time3 hours Means of assessment (teacher’s work) Mark assignments Percentage in SBA20% Authentication Individual work Preparation performed at home Main part to be finished in class time May 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 BCAEXPTISASSN S6 11 33 1 11 S5 S4 (BCA, EXPT, IS and ASSN should spread out evenly across S5 and S6)
SBA requirements Number of Experiments (including BCA & EXPT, but excluding IS) S6 11 S5 S4 88
NSS Combined Science (Chemistry Part) School – based Assessment SBA REQUIREMENTS Number of assessments on SBA tasks Number of Experiments (including VA & EXPT) VA EXPTASSN % in SBA 30%40%30% S6 11 22 11 77 S5 S4 44 (VA, EXPT and ASSN should spread out evenly across S5 and S6)