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(2015年5月)算术应用题,历来被看作小学教学的重点和难点。有些学生对它有畏难情绪。其实,只要根据它的规律~①,顺藤摸瓜难度并不大。应用题的内容虽然包罗万象,但不外乎加、减、乘、除四种,形式虽然千变万化,但超不出和、差、积、商的规律。应用题的已知条件和未知条件,不是和、差类就是积、商类,如果是和、差类,只有根据和、差规律去分析,才是唯一的思路。如果是积、商类,只有根据积、商规律去推理,才能作出正确的答案。算术是科学知识,科学知识是有规律的知识。教
(May 2015) Arithmetic problems have long been regarded as the focus and difficulty of primary school teaching. Some students fear it. In fact, as long as according to its law ~ ①, easy to follow the melody is not difficult. Although the application of the contents of the all-encompassing, but nothing more than add, subtract, multiply, in addition to four kinds, although the ever-changing forms, but not over, poor, product, business rules. Application of the known conditions and unknown conditions, not and, the difference is the product, business class, if and, poor class, only based on and, to analyze the law, is the only way. If it is product, business class, only according to product, business law to reason, in order to make the right answer. Arithmetic is scientific knowledge, scientific knowledge is regular knowledge. teach