论文部分内容阅读
等差数列和等比数列,是两种重要的数列。通常总是按照先等差数列而后等比数列的順序进行教学的。作为試驗,在教学中我們使用了另外一种教法一“对比法”。所謂“对此法”,就是把等差数列和等此数列的相应內容,同时提出,平行地加以研究。下面让我們說說这种教法。为了引出等差数列和等比数列,我們給出了这样一个問題:某铜鉄厂1957年产鋼量是5千吨,以后每年此前一年多产2千吨,写出1957年至1961年的产量;如果以后每年的产量是前一年的1.5倍呢?
Arithmetic series and geometric series are two important series. Usually, the teaching is performed in the order of the first equal arithmetic sequence and the subsequent mathematical sequence. As a test, we used another teaching method called “comparative method” in teaching. The so-called “this law” refers to the corresponding contents of the equal-difference series and the series, and simultaneously proposes and studies them in parallel. Let us talk about this teaching method below. In order to elicit arithmetic series and geometric series, we have given such a problem: a copper gong plant produced 5,000 tons of steel in 1957, and later this year, it produced 2,000 tons more per year, writing it from 1957 to 1961. The output; if the annual output is 1.5 times the previous year?