Using a demonstration of strong and weak acids, Australian researchers studied the effectiveness of using cognitive conflict strategy with Year 11 chemistry students
Researchers from the University of Western Australia, Maree Baddock and Robert Bucat, explored the effectiveness of using cognitive conflict strategy with 66 Year 11 chemistry students.1 Cognitive conflict arises when students observe an event which is at odds with their current understanding. The students are then encouraged to think about possible explanations and work towards a meaningful understanding of the phenomenon.
In the three-year project the researchers used information gathered from the teaching of a lesson in one year to help modify the teaching in the following year to enhance students' learning. The researchers used a demonstration which showed the colour of methyl violet indicator in hydrochloric acid of concentrations 1 M, 0.1 M, 0.01 M and 0.001 M and 1 M ethanoic acid.
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