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Issue 3, 2012
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Development and validation of the implicit information from Lewis structures instrument (IILSI): do students connect structures with properties?

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Abstract

Lewis structures are a simplified two dimensional “cartoon” of molecular structure that allow a knowledgeable user to predict the types of properties a particular substance may exhibit. However, prior research shows that many students fail to recognize these structure-property connections and are unable to decode the information contained in the structures, thus resulting in students' inability to use Lewis structures for their intended purposes. We have developed a survey instrument using responses from student interviews and open-ended questions from a previous research study to determine students' beliefs about the information that can be obtained from Lewis structures. The survey was found to be reliable and valid through multiple administrations to a total of 3203 students, including first- and second-semester general chemistry and organic chemistry students, junior/senior level undergraduate chemistry students, and graduate level chemistry students. We propose that this survey can be a useful informational tool for instructors for a wide range of courses where students' understanding of structure-function relationships is important.

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Publication details

The article was received on 16 Nov 2011, accepted on 07 Feb 2012 and first published on 24 Feb 2012


Article type: Paper
DOI: 10.1039/C2RP00010E
Citation: Chem. Educ. Res. Pract., 2012,13, 195-200
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    Development and validation of the implicit information from Lewis structures instrument (IILSI): do students connect structures with properties?

    M. M. Cooper, S. M. Underwood and C. Z. Hilley, Chem. Educ. Res. Pract., 2012, 13, 195
    DOI: 10.1039/C2RP00010E

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