Using Context-Free Grammars to Scaffold and Automate Feedback in Precise Mathematical Writing
Using Context-Free Grammars to Scaffold and Automate Feedback in Precise Mathematical Writing
复制标题
使用上下文无关语法来构建和自动化精确数学写作中的反馈
DOI:
10.1145/3545945.3569728
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发表时间:
2023
期刊:
影响因子:
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通讯作者:
Zilles, Craig
中科院分区:
文献类型:
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作者:
Xia, Jason;Zilles, Craig
In technical writing, certain statements must be written very carefully in order to clearly and precisely communicate an idea. Students are often asked to write these statements in response to an open-ended prompt, making them difficult to autograde with traditional methods. We present what we believe to be a novel approach for autograding these statements by restricting students' submissions to a pre-defined context-free grammar (configured by the instructor). In addition, our tool provides instantaneous feedback that helps students improve their writing, and it scaffolds the process of constructing a statement by reducing the number of choices students have to make compared to free-form writing. We evaluated our tool by deploying it on an assignment in an undergraduate algorithms course. The assignment contained five questions that used the tool, preceded by a pre-test and followed by a post-test. We observed a statistically significant improvement from the pre-test to the post-test, with the mean score increasing from 7.2/12 to 9.2/12.
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