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Baddock, Maree; Bucat, Robert – International Journal of Science Education, 2008
In an action research study, 66 students from Year 11 in an Australian school were shown the colour of methyl violet indicator in some hydrochloric acid solutions, and then in an acetic acid solution. The intent was to create a cognitive conflict, resolution of which would lead to an understanding of the concept "weak acid". Student…
Descriptors: Action Research, Conflict, Chemistry, Science Instruction