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计算尺的应用很广泛。在高中代数里紧接着对数理论知识的学习,让学生了解对数计算尺的构造原理,并熟练地运用计算尺来进行计算,是教学这一章的重要任务之一。我认为进行对数计算尺的教学,应该注意以下的几个方面: 1.应该紧密地把对数的理论知识和对数计算尺的构造原理与使用方法的教学联系起来。 2.应该充分地给学生多练习的机会,并且要培养学生经常地利用计算尺来进行计算的习惯。这里,我提出自己在教学中的几点体会。一、利用对数的首数知识来讲定位法则在对数计算尺的教学中,除了课本中所讲的一些理论知识外,使学生掌握定位的法则,是一个重要关键。在学习对数的计算时,已经为定位作了准备,应该充分利用这已有的基础。因此在教学定位法则时,和对
The use of slide rule is very extensive. In high school algebra followed by the study of the knowledge of logarithmic theory, let students understand the principle of the construction of the logarithm of the slide rule, and skillfully use the slide rule to calculate, is one of the important tasks of the teaching chapter. I think that the teaching of logarithmic slide rule should pay attention to the following aspects: 1. The theory of logarithm and the construction principle of logarithmic slide rule should be closely linked with the teaching of using method. 2. Students should be given plenty of opportunities to practice, and students should be trained to use the slide rule to calculate. Here, I present my own experience in teaching. First, the use of the first number of knowledge in terms of the law of positioning in the logarithm of the teaching of the slide, in addition to some theoretical knowledge in the textbook, so that students master the law of positioning, is an important key. In the calculation of the logarithm, we have prepared for positioning and we should make full use of this existing foundation. So when teaching positioning rules, and