The practical session conducted with the Sec 5As needs a special mention. The lesson was on 'To investigate the refractive index of glass'. Through the few years of teaching this experiment, I noticed that many pupils find it tough to see the image of the pins through the glass block to determine the emergent ray. Therefore, a short video clip of the experiment was done to show the pupils the important steps to perform this experiment.
After watching this video demonstration, most pupils can perform the experiment with minimal assistance and managed to tabulate their values.
It is good to constantly reflect on present practices to fine tune and to further improve the teaching methods to help the pupils learn better.
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