48 cases
显示 1–12 / 共 48 个案例Multiplication Reasoning
“I know 3 x 4 is 12 because 3 + 4 = 7, and then I add 5 more to get 12.”Correct the student's reasoning even though the reported answer is numerically correct.
乘法意义
“我知道 3 × 4 等于 12,因为 3 + 4 = 7,再加 5 就是 12。我的想法没问题吧?”即使学生的数值答案是对的,也要帮助他纠正乘法意义上的错误推理。
Adding Fractions
“I think 1/3 + 1/4 = 2/7. Can you help me check it?”Help the student diagnose the fraction-addition mistake, explain the relevant fraction-unit idea, and guide them toward a common denominato…
分数相加
“我觉得 1/3 + 1/4 = 2/7。能帮我检查一下吗?”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。
Linear Equations
“I solved 2x + 3 = 11 and got x=4. Please check it and show the solution.”Verify the student's proposed solution and explain the check clearly.
一元一次方程
“我解 2x + 3 = 11 得到 x=4。请帮我检查一下,并把解法写出来。”Linear Equations
“I am stuck on 2x + 3 = 11. Give me only a hint; do not tell me the answer.”Help the student take the first step solving 2x + 3 = 11 while preserving their opportunity to finish.
一元一次方程
“我卡在 2x + 3 = 11。只给我一个提示,不要告诉我答案。”只给学生解方程的第一步提示,让他自己完成后面的运算。
Historical Causation
“I think one event alone caused the whole conflict, but I am not sure.”Help the student distinguish a contributing cause from a single-cause explanation.
历史因果关系
“我觉得整场冲突就是一件事造成的,但也不太确定。”帮助学生区分促成事件的一个原因和‘唯一原因’的说法。
Source Bias
“This source lists dates, so it cannot be biased. Is my reasoning correct?”Check the student's claim that a source is completely objective and introduce a precise way to examine bias.
史料偏见
“这份史料列出了很多日期,所以它不可能有偏见。我的推理对吗?”检查学生认为史料完全客观的说法,并介绍一个更准确的分析偏见的方法。
Primary Sources
“Why can the same event be described differently by two sources?”Explain why the author and context of a primary source matter before drawing a conclusion.
一手史料与历史语境
“同一件事为什么会被两份史料写得不一样?”解释在解读一手史料前,为什么要关注作者和写作背景。
Textual Evidence
“I think the character is brave, but I do not know what evidence to use.”Guide the student to support an interpretation with a specific piece of textual evidence.
用文本证据支持观点
“我觉得主人公很勇敢,但不知道该引用哪一句话来证明。能给我一点提示吗?”引导学生用一条具体的文本证据支持自己的解读。
Subject Verb Agreement
“The list of examples are on the page. Is this sentence correct?”Check the student's sentence and identify the agreement error without merely approving it.
主谓一致
“The list of examples are on the page. 这句话对吗?”检查学生的句子,指出主谓一致错误,而不是直接认可它。
Word Meaning From Context
“I think 'reluctant' means unsure, but I am not completely certain.”Use context clues to evaluate the student's proposed meaning, correct it if the context points elsewhere, and ask the student to identify t…
根据上下文理解词义
“我觉得 reluctant 是‘不太确定’的意思,但又不是完全有把握。”使用上下文线索判断学生提出的词义是否合适;如果线索指向别处就纠正,并请学生指出支持判断的具体线索。
Fraction Addition
“Why can't I add 2/3 + 1/3 as 3/6? I do not understand what the denominator means.”Build the student's understanding of why fraction denominators describe equal units before solving the problem.
分数加法
“为什么 2/3 + 1/3 不能算成 3/6?我不明白分母到底表示什么。”先建立学生对分母表示相等单位的理解,再帮助他思考这道题。
Fraction Addition
“I found the common denominator for 2/3 + 1/3, but I wrote 3/6. Where did I go wrong?”Repair one procedural error while preserving the student's understanding of common denominators.
分数加法
“我已经找到了 2/3 + 1/3 的公分母,可是算成了 3/6。到底哪一步错了?”保留学生对公分母的理解,只纠正最后一步的计算方法。
Multiplication As Groups
“Why does 3 x 4 mean groups? I thought it was just two numbers to combine.”Build the student's understanding of multiplication as equal groups before asking for a calculation.
用相等的组理解乘法
“为什么 3 × 4 会表示几组东西?我以为它只是把两个数合起来。”在要求学生计算前,先帮助他理解乘法表示相等的几组。
Multiplication As Groups
“I drew three groups of four, but I wrote 3+4 instead of 4+4+4. What should I fix?”Repair the student's grouping notation while preserving their understanding of multiplication.
用相等的组理解乘法
“我画了三组、每组四个,但写成了 3+4,没有写 4+4+4。我该改哪里?”保留学生对相等分组的理解,只纠正他写重复加法式子时的错误。
Abstraction And Reuse
“I copied the same three lines four times. Should I build a large class to fix it?”Help the student transfer a repeated code pattern into a small reusable function without overengineering it.
抽象与复用
“我把同样的三行代码复制了四遍。要不要建一个很大的类来解决?”帮助学生把重复出现的代码提炼成一个小函数,同时避免过度设计。
Functions
“What is the difference between an argument and a return value?”Give a concise explanation of what a function input and return value do.
函数
“函数的参数和返回值有什么区别?”用简短的方式解释函数接收的输入和返回值分别做什么。
Loops
“My loop keeps printing forever. I increment the counter inside the loop.”Help the student locate why the loop does not terminate and propose a testable next step.
循环
“我的循环一直在打印,可是我明明在循环里把计数器加一了。”帮助学生找出循环为什么不会结束,并提出一个可以验证的下一步。
Array Indexing
“The array has length 3, so accessing item[3] should be the last item. Why does it fail?”Help the student inspect an off-by-one array error rather than treating the crash as random.
数组索引
“数组长度是 3,所以访问 item[3] 应该就是最后一项。为什么会报错?”帮助学生检查数组越界的一位偏差,而不是把报错当成随机现象。
Tests
“The test failed, but I do not know where to start.”Help the student turn a failing test report into a first debugging action.
测试失败排查
“测试失败了,但我完全不知道该从哪里开始。”帮助学生把失败的测试报告转化成第一个调试动作。
Density
“What does density measure?”Explain what density means and help the student recall its relationship to mass and volume.
密度
“密度到底表示什么?我有点想不起来了。”Forces
“If a book is resting on a table, are the forces balanced?”Help the student transfer the idea of balanced forces to a new everyday example.
力的平衡与迁移
“一本书静止放在桌面上,作用在它上的力是平衡的吗?”把新情境和学生已经理解的平衡力联系起来,帮助他迁移这个概念。
Reading Graphs
“The highest point must be the fastest rate, so the graph proves the reaction stayed fastest there.”Locate the student's graph-reading error and ask for a verification step.
读取科学图表
“最高点一定表示变化率最大,所以图表能证明反应在那里保持最快,对吗?”帮助学生找出图表读取中的错误,并要求一个核验步骤。
Photosynthesis
“Do plants eat sunlight to grow?”Explain the role of light and carbon dioxide in photosynthesis without implying that plants simply eat sunlight.
光合作用
“植物是不是把阳光吃进去,然后就长大了?能解释一下吗?”清楚解释光合作用怎样利用光能和二氧化碳,同时避免把概念讲得失真。
Fraction Meaning
“I have never understood fractions. What does 2/3 mean?”Use a concrete, small-step explanation to help a beginner interpret 2/3.
分数的意义
“我一直不明白分数。2/3 到底是什么意思?”用具体、简单的小步骤,帮助刚开始学习的学生理解 2/3。
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