| 2. |
- Karlsson, Göran, 1954, et al.
(författare)
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Joint reasoning about gas solubility in water in modified versions of a virtual laboratory
- 2013
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Ingår i: 10th International Conference on Computer-Supported Collaborative Learning, CSCL 2013; Madison, WI; United States; 15 June 2013 through 19 June 2013. - : International Society of the Learning Sciences. - 1573-4552. ; 2, s. 283-284, s. 283-284
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Konferensbidrag (refereegranskat)abstract
- A virtual laboratory was designed to enable students to collaboratively discover the concept of gas solubility in water at different physiological conditions. The virtual laboratory was developed through a design experiment involving three successive versions with different guiding structures. Analysis of 13 dyads' reasoning about gas solubility in water revealed that the students' problem was to understand the concept of solubility of gases. It was also observed how the guiding structures within the three different versions influenced the students' reasoning about the concept.
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| 3. |
- Stahre Wästberg, Beata, 1974, et al.
(författare)
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Design considerations for virtual laboratories: A comparative study of two virtual laboratories for learning about gas solubility and colour appearance
- 2019
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Ingår i: Education and Information Technologies. - New York, NY : Springer Science and Business Media LLC. - 1360-2357 .- 1573-7608. ; 24:3, s. 2059-2080
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Tidskriftsartikel (refereegranskat)abstract
- © 2019, The Author(s). Building a virtual laboratory for teaching and learning is a highly complex process, incorporating diverse areas such as interaction design, visualisation, and pedagogy. This article focuses on the production and implementation issues that were found in the comparison of two different virtual laboratory projects, and discuss which design considerations can be drawn from these observations. Two web-based virtual laboratories - the Gas Laboratory and the Virtual Colour Laboratory - were developed independently of each other within two different content areas. The laboratories share considerable overlaps in goals and production circumstances. Through a comparison of production and outcome, similar problems related to design, development and implementation were observed. The research uses a mixed method approach combining quantitative pre- and post-tests for assessments, qualitative surveys, and qualitative, ethnographic observations and interviews. By comparing the background material, five design challenges for developing virtual laboratories are identified: 1) how to balance ambitions with available resources; 2) how to balance intended levels of user interaction with exploratory freedom; 3) how to find appropriate levels of realism depending on target group; 4) how to choose between mimicking real world appearance and enhanced features; and 5) how to find the best learning situation for the virtual laboratory. To meet these challenges, the following design considerations are proposed: Guide the design work with a clear understanding of purpose and context; select appropriate technology to ensure efficient design and media usage; select level of realism considering purpose and end users; and provide learning guides before and after the virtual lab session.
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