Integrated instructions and solvent polarity indicators : reducing the complexity of first-time distillation
Thomson, Patrick I. T. and Cleary, Deborah (2024) Integrated instructions and solvent polarity indicators : reducing the complexity of first-time distillation. Journal of Chemical Education, 101 (10). pp. 4321-4326. ISSN 0021-9584 (https://doi.org/10.1021/acs.jchemed.4c00466)
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Abstract
Practical work carries a high cognitive load, particularly when unfamiliar or complex equipment is first introduced. “Integrated Instructions” have been previously used to reduce cognitive load in secondary education practical work by placing instructions within diagrams, reducing the need to integrate disparate sources of information. Here, we use this approach in an undergraduate-level distillation experiment to focus attention, reduce cognitive load, and make space for light “elements of inquiry” learning. The use of a solvatochromic dye as a polarity indicator also adds an unusual visual aspect to distillation, allowing students to easily estimate or verify the composition of fractions.
ORCID iDs
Thomson, Patrick I. T. ORCID: https://orcid.org/0000-0001-9831-9199 and Cleary, Deborah;-
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Item type: Article ID code: 90484 Dates: DateEvent8 October 2024Published9 September 2024Published Online27 August 2024Accepted28 March 2024SubmittedSubjects: Science > Chemistry Department: Faculty of Science > Pure and Applied Chemistry Depositing user: Pure Administrator Date deposited: 05 Sep 2024 10:41 Last modified: 10 Oct 2024 07:29 URI: https://strathprints.strath.ac.uk/id/eprint/90484