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文[1]为一篇临场发挥课案例.作者心系培养学生能力,勇于大胆推广探索的进取精神当然应当肯定.可是遗憾的是在举一反三的推广过程中,太多地出现了科学性错误与计算错误.在六个推广问题中,只有问题(1)的答案正确,其余五个不是计算失误就是由于思维片面性出错.其中问题(2)的答案属计算失误,正确答案应为1617种:问题(3)的答案遗漏52种;问题(4)的答案遗漏4种;问题(A)的结论给出的计算公式是错误的;问题(B)的结论给出的计算公式遗漏了公比为分数
The article [1] is an on-the-spot play case. The author’s spirit of cultivating student abilities and boldly promoting and exploring the enterprising spirit should certainly be affirmative. However, it is a pity that too many scientific mistakes have occurred in the process of promotion by analogy. Calculation errors. Of the six promotion problems, only the answer to question (1) is correct, and the remaining five are not due to miscalculations or errors due to one-sided thinking. Among them, the answer to question (2) is a calculation error. The correct answer should be 1617: The answer to (3) is missing 52 kinds; the answer to question (4) is missing 4; the calculation formula of the conclusion of question (A) is wrong; the conclusion given by question (B) is that the calculation formula has omitted the common ratio as fraction