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arXiv 2603.26679cs.CYcs.AIcs.HC
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人工智能与数学教育的交汇:一个支持大班数学课程教师的案例研究

AI Meets Mathematics Education: A Case Study on Supporting an Instructor in a Large Mathematics Class with Context-Aware AI

École polytechnique fédérale de Lausanne(洛桑联邦理工学院)

Jérémy Barghorn, Anna Sotnikova, Sacha Friedli, Antoine Bosselut

AI总结:

本文探讨了通过上下文感知AI支持大规模数学课程的教学挑战,通过细调轻量语言模型提高回答准确性,并强调了人机协作在课程支持中的重要性。

摘要:

大规模大学课程面临持续的挑战,即提供及时且可扩展的教学支持。尽管生成式AI有潜力,但其有效使用依赖于可靠性和教学对齐。我们呈现了一个以人类为中心的案例研究,展示了在微积分I课程中AI辅助支持的实施,与课程教师密切合作。我们开发了一个系统来回答学生在讨论论坛上的问题,通过在2588个历史学生-教师互动上微调轻量级语言模型。该模型在150个代表性问题基准测试中达到了75.3%的准确性,其中36%的案例中其回答被评分等于或优于教师回答。部署后学生调查(N=105)表明,学生重视回答与课程材料的一致性及其即时可用性,但仍依赖教师验证以获得信任。我们强调了混合的人工智能工作流程在安全和有效课程支持中的重要性。

英文摘要:

Large-enrollment university courses face persistent challenges in providing timely and scalable instructional support. While generative AI holds promise, its effective use depends on reliability and pedagogical alignment. We present a human-centered case study of AI-assisted support in a Calculus I course, implemented in close collaboration with the course instructor. We developed a system to answer students' questions on a discussion forum, fine-tuning a lightweight language model on 2,588 historical student-instructor interactions. The model achieved 75.3% accuracy on a benchmark of 150 representative questions annotated by five instructors, and in 36% of cases, its responses were rated equal to or better than instructor answers. Post-deployment student survey (N = 105) indicated that students valued the alignment of the responses with the course materials and their immediate availability, while still relying on the instructor verification for trust. We highlight the importance of hybrid human-AI workflows for safe and effective course support.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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