用AI助教+乐高机器人教小学生地震自救,互动反馈更有效。
Earthquaker-AI: A Retrieval-Augmented Generation Framework with Rubric-Based Assessment for Primary School Earthquake Education
- 用检索增强生成匹配官方指南,回答准确且低幻觉。
- 分年级设计多维评分体系,从选择题到写作逐步提升能力。
- 结合动手操作与反思训练,培养儿童应急意识与自控力。
本文提出Earthquaker-AI,一个融合检索增强生成的对话式AI教育框架,旨在提升小学生的地震防范意识与应对能力。系统在原有获奖的STEM项目基础上,将乐高WeDo2机械模拟升级为认知与元认知层面的学习机制。学生通过传感器与执行器感知防护动作,实现具身化学习。AI助教采用基于评分量表的语义反馈,引导学生响应并支持自我调节学习。学习路径按认知发展分层:低年级以多选题评估基础安全行为,使用二维评分;中年级识别动作序列,采用三维评分;高年级要求简短文字表达,通过四维评分(含表达清晰度)。对话模块利用RAG技术,实现学生提问与官方指南的语义匹配,确保输出准确可靠。实验表明,系统具有高信息对齐性与低幻觉率。该框架融合实践、信息处理与反思,促进技术素养、自我调节与数字系统负责任使用,助力早期危机管理能力培养。
原文摘要 · Abstract (English)
This paper presents Earthquaker-AI, a hybrid educational framework building upon a previously implemented educational robotics project by integrating a conversational AI assistant based on Retrieval-Augmented Generation. It aims to enhance earthquake preparedness and conscious action among primary-school students. The system extends the award-winning STEM project Earthquaker moving from mechanical simulation with Lego WeDo2 to cognitive and metacognitive processing. The robotics component uses Lego WeDo2 automation to simulate seismic response, letting students interact with sensors and actuators as tangible representations of protective actions. The assistant operates as a guided learning mechanism aligning student responses with safety guidelines, while providing rubric-based verbal feedback that supports self-regulated learning and calmness under emergency conditions. Earthquaker-AI follows a progressive learning trajectory aligned with cognitive development. In early grades, the focus is on basic recognition of safety actions through multiple-choice questions, assessed via a two-dimensional rubric. In middle grades, students identify correct action sequences through multiple-choice questions, evaluated via a three-axis rubric. In upper grades, the approach shifts to verbal production, requiring short written responses assessed via a four-dimensional rubric that includes clarity of expression. The dialogic module uses RAG to match student queries semantically with official guidelines, generating safe, accurate responses. Experimental evaluation shows high groundedness and accuracy, with a low hallucination rate. Overall, Earthquaker-AI combines hands-on engagement, information processing, and reflective practice. Combining robotics, rubrics, and AI promotes technological literacy, self-regulation, and responsible use of digital systems, contributing to early crisis-management skills.
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