3个盘子天盈资本,每盘8个水果,一共有多少个水果?
最近,这道小学二年级的数学题让网友们“吵翻”了。原因是一个孩子写了3×8,却被老师判错。
有老师在家长群解释,写乘法算式,先找每份数写在前面,再找有几份写在后面,应列式为:每份数x份数=总数(相同的加数x相同加数的个数=总数)。
网友截图
A math problem for second graders has recently sparked widespread discussion.
The problem asks: If there are 3 plates, each with 8 fruits, how many fruits are there in total? A student's answer of \"3×8\" instead of \"8×3\" was marked incorrect by the teacher, who explained the multiplication equation should follow the format \"number of items per portion × number of portions = total.\" This grading standard has left many parents confused.
另一位浙江家长留言表示遇到了相似的问题。
他的孩子在加法算式改写乘法算式的题目中,写的答案是:“7+7+7=3×7”“8+8+8+8=4×8”“9+9+9+9+9=5×9”……这位家长去请教了数学老师,老师表示二年级按新教材批改,这些写法都是错误的。
网友截图
这让许多辅导作业的家长直呼不明白:明明结果是一样的天盈资本,顺序有这么重要吗?
老师回应:教材新规定
据潮新闻报道,几位在杭州公办小学教书的数学老师表示,今年新学期新教材上要求的乘法列式就是:相同加数x个数=总数。
在杭州小学教二年级的包老师说,原来在乘法列式时对顺序要求并不严格,今年教材要求更为明确。“开学不久,我已经和一些家长聊过这个问题了,特别是和家有二胎的家长。”
包老师表示,这样的规定要求老师在上课时要更深入、详细地解释乘法的含义,“我个人认为是有必要的,孩子们会更明白乘法是什么,而且对后面学除法也有帮助。”
Some teachers explained that starting from the fall semester of 2025, textbooks now have more explicit requirements regarding the order of factors in multiplication equations. One teacher said that such a regulation is necessary, as it enhances students' comprehension of multiplication and also better prepares them for learning division later on.
厦门日报报道,福州数学名师卢声怡认为,作为老师更希望的是,当学生写下算式时,能够清楚地知道每个数字在问题中代表的含义。
用大白话说,在孩子刚学习乘法的意义时,之所以只给出了一种算式,即相同加数在前,相同加数的个数在后,为的是和情境更对应,方便学生理解乘法的意义。但是,学会了后,后面的要求就没有这么严格了。
Another math teacher mentioned that the original intent of this requirement is to help students clearly understand what each number represents in the equation.
还有数学老师在人民教育出版社的教材反馈平台上咨询了这个问题天盈资本。
出版社在回复中表示:乘法算式的写法或者是符号表达,本身其实就是对乘法定义的一种约定,因此,这种符号表达的意义是唯一的,特别是在有具体情境的时候。
网友截图
The issue was also raised on the textbook feedback platform of the People's Education Press. In response, the publisher explained that the way multiplication equations are written is essentially a convention based on the definition of multiplication. Therefore, the meaning of this multiplication notation is unique, particularly when applied to specific contexts.
网友热议
关于乘法算式要不要计较顺序,网友们意见不一。
有网友表示不理解,认为这样的规定太死板。
有一部分网友支持,认为乘法的逻辑还是要明确。
比如:3只5两的梭子蟹和5只3两的梭子蟹,虽然总重量相等,但两者区别很大。
很多70后80后网友也表示:自己小学的时候学算术,就要求弄清楚前后顺序。
还有网友支招:把单位写上去不就一眼看明白了吗?
Debate has sparked among netizens over whether the order of multiplication equations should be strictly emphasized. Some users expressed confusion, questioning the importance of order when the results are identical. Others supported the idea of maintaining a clear logical sequence in multiplication.
Additionally, certain individuals suggested that including units in the equation could help clarify the meaning behind the numbers and resolve contextual ambiguities.
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来源:21世纪英文报 中国青年报 潮新闻 厦门日报 宁波晚报
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