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【课堂回放】在“认识负数”单元调研检测中,有这样一道题:如果把10吨记作0,11吨记作+1。那么下列几句话中,错误的是()。(1)8吨记作+8。(2)6吨记作一4。(3)15吨记作+5。从教材的要求来讲,此题相对难度大一点,学生在练习中错误较多。为使学生理解此题,在评讲之前,根据分析,我认为学生对题目的意思没有搞清楚,因此,在评讲时,我重点引导学生对第一句话进行了
【Classroom playback】 In the “Negative Recognition ” unit research testing, there is such a question: If 10 tons recorded as 0,11 tons recorded as +1. Then the following few words, the error is (). (1) 8 tons marked as +8. (2) 6 tons recorded as a 4. (3) 15 tons marked as +5. From the requirements of teaching materials, this question is relatively more difficult, students in the practice more errors. In order to help students understand this question, prior to the comment, according to the analysis, I think the students did not understand the meaning of the question. Therefore, in my commenting, I focused on guiding students to make the first sentence