To encourage conceptual change in these students, you have them perform simple experiments that would have its results contradict with their expectations and predictions.
Conceptual change is the process where a person's beliefs or predictions change due to the presence of new facts, and new beliefs.
To get a change in concept, one of the ways is to have an experiment that would produce a glaring and satisfactory result.
When the students see that the results from the experiment that they have done does not agree with their belief, they would have to change their initial thoughts.
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