Using a combination technique for the assessment of students’ cognitive structures on acid–base chemistry

Derman, Ayşegül; Gunes, Figen; Gulacar, Ozcan; Eilks, Ingo

doi:10.1039/d3rp00142c

Cited by 2 publications

References 54 publications

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Patterns in Explanations of Organic Chemistry Reaction Mechanisms: A Text Analysis by Level of Explanation Sophistication

Crowder,

Raker

2024

J. Chem. Educ.

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Learning the language of organic chemistry, i.e., how to describe reaction mechanisms, is crucial to success in any postsecondary organic chemistry course. However, it is well-known that learners struggle with reasoning about and explaining reaction mechanisms beyond surface-level features. Multiple studies have sought to aid learners in developing these skills. Investigating the connections that learners make regarding reaction mechanisms through their explanations provides insight into how we can better promote the development of learners' reasoning skills. In this study, we evaluate 20,000+ learner explanations of 90 reaction mechanisms. We use network analysis to explore patterns in keywords used by learners and visualize the word connections between them, based on their co-occurrence, within our entire data set, by reaction type, and by levels of explanation sophistication. Our results indicate that learners consistently rely on explicit surface-level features in their explanations with expected contextual variance by reaction type. This trend persists across the levels of sophistication, however, with improvements in the use of vocabulary and coherency as sophistication progresses. We hypothesize that this is evidence of learners actively working toward constructing understanding as they experiment with and refine their vocabulary until they are able to pare down their explanations in a coherent manner. This work offers insights for instructors seeking to promote the development of learners' reasoning skills and for researchers interested in the development of machine-learning models to assist in evaluating learner explanations of reaction mechanisms.

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Patterns in Explanations of Organic Chemistry Reaction Mechanisms: A Text Analysis by Level of Explanation Sophistication

Crowder,

Raker

2024

J. Chem. Educ.

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Cognitive Structures and Their Place in Science Education

Yıldırır,

Kızmaz

2024

Advances in Educational Technologies and Instructional Design

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Cognitive structures have attracted the attention of science education researchers because they affect students' learning of new scientific knowledge and play an important role in subsequent learning. According to the researchers, in order to realise meaningful learning in education and training, students' cognitive structures should be determined correctly. Researchers have used techniques such as word association test, flow maps, concept maps, drawing and writing technique, and concept cartoons to determine students' cognitive structures. They analysed the data with methods such as cut-off point technique, coefficient of relatedness formula, response frequencies mapping method, and qualitative analysis. In this study, a) what cognitive structure is; b) the methods, techniques, and tools used to determine cognitive structures; and c) how the data collected was used to determine cognitive structures are analysed and explained with examples of articles. In addition, the results of previous studies on cognitive constructs, especially in the field of science education, are presented.

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Using a combination technique for the assessment of students’ cognitive structures on acid–base chemistry

Cited by 2 publications

References 54 publications

Patterns in Explanations of Organic Chemistry Reaction Mechanisms: A Text Analysis by Level of Explanation Sophistication

Patterns in Explanations of Organic Chemistry Reaction Mechanisms: A Text Analysis by Level of Explanation Sophistication

Cognitive Structures and Their Place in Science Education

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