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就数学而言,学科核心素养包含:数学抽象、直观想象、逻辑推理、数学建模、数学运算和数据分析六个方面。数学核心素养是数学课程目标的集中体现,笔者认为在知识与方法上,发展数学学科素养,才能够让学生站在更高的层次上理解数学的本质。本文以苏科版数学七年级上册“有理数的减法”为例,谈一谈直观想象在有理数减法运算中的妙用,以此给其他数学教育工作者在课堂教学中渗透数学学科
In terms of mathematics, the core literacy of the discipline includes six aspects: mathematical abstraction, visual imagination, logical reasoning, mathematical modeling, mathematical operation and data analysis. The core competence of mathematics is the concentrated expression of the goal of mathematics curriculum. The author thinks that in the knowledge and method, the development of mathematical discipline quality can enable students to understand the nature of mathematics at a higher level. In this paper, Su Ke version of the seventh grade of mathematics “Subtraction of rational numbers ” as an example, talk about the magical effect of visual imagination in the rational number subtraction operation, in order to other math education workers in the classroom teaching penetration mathematics