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May 10, 2026Chemistry Teacher InternationalOpen Access

Enhancing instrumental analysis skills through open-ended, problem-solving learning with group investigation

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Authors

APAgung Tri PrasetyaState University of SemarangSHSri HaryaniState University of SemarangSWSri WardaniState University of Semarang

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Implication

Randomized trial demonstrates improved analytical reasoning in pre-service chemistry teachers, suggesting effective teaching strategies.

Key Points

  • This research aimed to enhance instrumental analysis skills using open-ended problem-solving in a group setting. The focus was on improving procedural fluency and analytical reasoning in chemistry education.
  • Group Investigation design implemented in an undergraduate Chemical Instrumental Analysis course (N=90).
  • Students collaborated in pairs or small groups on instrument-based problems, exploring multiple solution pathways.
  • Evidence collected through expert observations, rubric-scoring of reports, and a conceptual test aligned with UV–Vis and AAS principles.
  • Higher consistency observed in UV–Vis indicators compared to AAS-related steps.
  • Greater variability identified in selected AAS elements and reporting components.
  • No causal effects implied, with conclusions limited to observed patterns and associations.

Cite This Study

Prasetya et al. (2026) studied this question.

synapsesocial.com/papers/6a002191c8f74e3340f9c6f2https://doi.org/10.1515/cti-2025-0053
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