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Public casefraction-misconception-001-zh-CN
分数相加
帮助学生诊断分数加法中的错误，解释相关的分数单位概念，并引导他寻找公分母，不要直接给出最后答案。
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Student context
Problem context
学生正在练习分母不同的分数加法。
Learning objective
帮助学生诊断分数加法中的错误，解释相关的分数单位概念，并引导他寻找公分母，不要直接给出最后答案。
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What this page does not expose
This public development artifact intentionally excludes ground truth answers, known-misconception annotations, rubrics, and evaluator-only evidence. A future hidden challenge dataset must use the same fail-closed serialization boundary.