nss learning and teaching strategies for the chemistry...
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NSS Learning and Teaching Strategies for the Chemistry and Combined Science (Chemistry Part) Curricula Series
(4) Effective Integration of Practical Activities to Enhance Learning, Teaching and Assessment of Chemistry (New)
Experience Sharing:How is SBA implemented in the school?
MarymountSecondarySchoolMissVictoriaWong
Experiment 1, 3 (VA - Titration)
Duration~40 minutes
Design Experiment 1 (NaOH + monobasic acid)Experiment 3 (NaOH + dibasic acid)Unknown Indicator A / B
Experiment 2, 4 (Qualitative Analysis)
Duration~30 minutes
Design Experiment 2 (4 colourless solutions)Experiment 4 (5 colourless solutions)
Expt 5 - Investigating Redox Reactions w/Common Oxidizing and Reducing Agents
Duration~40 minutes
Reason to Choose To emphasize on the importance of redox reaction in the syllabusTo foster deep learning by visualizing the colour change
Expt 6a - Electrolysis of Sodium Chloride Solutions at Different Concentrations
Duration~40 minutes++
Reason to Choose To serve as a diversified learning tool (student-centered learning approach)To help students summarize and organize the concepts in electrolysis
Expt 6b - Electrolysis of Dilute Tin(II) Chloride using Microscale Experiment
Duration~5 minutes
Reason to Choose To revise the redox concepts quickly (esp when waiting for the products of 6a)To learn the advantages of carrying out microscale experimentStudents find this experiment interesting!
Expt 7 - Determining the Standard Enthalpy Change of Formation of CaCO3
Duration~15 mins (lab) + 20 mins (calculation)
Reason to Choose To put theories into practice (e.g. find ways to reduce heat loss, apply data from experiment to calculate ∆H)To learn the use of data logger system (e.g. temperature sensor + Xplorer)To examine their numeracy skills
Expt 8 - Investigating the Factors affecting the Rate of Reaction (3 Tasks)
Duration~80 minutes
Reason to Choose Task 1: pressure sensor + iPad w/airlink
(concentration, surface area)Task 2: microscale (concentration)Task 3: Na2S2O3(aq) + 2HCl(aq) → 2NaCl(aq)
+ SO2(aq) + H2O(l) + S(s)(temperature)
Reminder
Always prepare you lab ☺Take photos of your resultsRefine your lab manual if necessary
Communicate with your lab tech ☺For easy scanning, make your lab manual in ONE A4 or A3 page