Experiment demonstrates improved understanding of water purification concepts in students, suggesting effective learning methods.
An open-inquiry experiment involving the purification of river water is described. The water purification laboratory covered a period of three weeks, which included a planning, implementation, and assessment period. The purpose of the experiment was to make the students aware of universal issues regarding the limited access to drinkable water, while simultaneously learning concepts not traditionally taught in a general chemistry course. The gains in knowledge were assessed through pre- and post-experiment quizzes, and the students’ experiences were analyzed utilizing a 6-point Likert experience survey. The students performed significantly better on the post-assessment and had a highly positive experience with the experiment.
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Lacy et al. (2016) studied this question.
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