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一、算术四則应用問題的教学目的通过四則应用題的教学,能够使学生正确运用已学过的基础知識去解决日常生活中和实际生产中所遇到的問題,和发展学生的邏輯思維和空間想象力。我們联系到初中学生所学的数学各科来看,用算术解答較繁难的四則应用題远不如用代数解答来得簡捷和易于掌握,因而后者的任务就更加显著了。用代数的方法立式需要涉及到很多算术中所讲的基本概念、观念,基本的数量关系,用算术方法来解答也同样以这些为推理的依据,因此为了使学生能正确的立式,应該把基本概念、观念,基本的数量关系的讲解,放在应用題教学的首要地位。这些内容在课本上是由浅入深地安排着,富有强烈的系統性,在整数一章,不惜用大量課时安排了很多分别用加、減、乘、除法法則来解的浅易的应
First, the teaching purpose of arithmetic four application problems Through the teaching of four application problems, students can correctly use the basic knowledge they have learned to solve the problems encountered in daily life and actual production, and develop students’ logical thinking and space. Imagination. When we contacted the mathematics students studied by junior high school students, the answers to the more difficult four-item questions in mathematics were far less convenient and easier to grasp with algebraic answers. The task of the latter was even more pronounced. The use of algebraic methods requires a lot of basic concepts, concepts, and basic quantitative relationships that are spoken in arithmetic. The use of arithmetic methods to solve these questions is also the basis for reasoning. Therefore, in order to enable students to correctly The basic concepts, concepts, and basic quantitative relationships should be placed at the forefront of applied problem teaching. These contents are arranged in a light and deep manner in the textbooks, and they are highly systematic. In the chapter of integers, they have spent a lot of school hours arranging a lot of simple and easy solutions to the problems of addition, subtraction, multiplication, and division.