数学教育的核心是:老师创造有效的课堂教学情境,学生用自己的体验和思维方式,再创造地应用数学知识,解决生活与实践问题。此过程中,学生启迪思维,发挥想象,教师穿针引线,由浅及深,师生双方互动达到最佳融合,从而提升学生学习数学的水平。本文以“三角形的中位线”一课为例,来品味教学时创设的数学意境。 The core of mathematics education is that teachers create an effective classroom teaching situation, students use their own experience and thinking ways, and then creatively apply mathematical knowledge to solve the problems of life and practice. In this process, students are encouraged to think, play imagination, and teachers are guided by light and deep. Interaction between teachers and students can be best blended so as to enhance students’ ability to learn math. In this paper, we take the course of “the median line of the triangle” as an example to taste the mathematical conception created in teaching.