论文部分内容阅读
一、使用学具,有助于学生理解数学算理数学是研究客观世界数量关系和空间形式的科学,数量关系和空间形式在数学中相互渗透,相互转化。这就要求在研究数学问题时,把数形知识结合起来,引导学生从数的方面用分析的方法进行抽象思维,从形的方面进行形象思维。通过学具的操作,可促进这一过程的完成。例如:学习一位数除法,用一位数除两位数,商是两位,十位上除后出现有余数的情况,如:42÷3,学生难以理解的是十位上余下的几个十要和个位上的数结合起来继续除。如何突破这个难点?可采用摆小棒的方
First, the use of learning tools to help students understand mathematics Mathematical Mathematics is to study the relationship between the objective world and the spatial form of the number of forms of science, quantitative relations and spatial forms in mathematics, mutual penetration and mutual transformation. This requires that in the study of mathematical problems, the knowledge of the number of forms combined to guide students from the number of aspects of the method of thinking with abstract thinking, from the aspect of image thinking. The operation of learning tools can facilitate the completion of this process. For example: to learn the one-digit division, with one digit divided by two digits, the quotient is two, ten after the addition of a remainder, such as: 42 ÷ 3, students difficult to understand is the remaining ten A combination of ten and a few bits to continue except. How to break through this difficult?