导入是课堂教学中的初始环节,也是一堂课的开端。恰当的导入环节的设计可以为整节课的教学奠定良好的基调,从而达到事半功倍的教学效果。小学数学是学生学习的一门基础性学科,在小学数学教学中设计导入环节,把握导入的原则,是实现高效教学的基础。主要结合自身的实践,提出了在导入环节中应注意的几点原则,希望可以为数学教师的教学提供一些参考。 Import is the initial part of classroom teaching, but also the beginning of a lesson. The appropriate design of the introduction of the entire section of teaching can lay a good foundation for teaching, so as to achieve a multiplier effect of teaching. Primary school mathematics is a basic discipline of students’ learning. It is the foundation of efficient teaching to design the import link in elementary mathematics teaching and grasp the principle of introduction. In the light of its own practice, it puts forward several principles that should be paid attention to in the process of introduction, hoping to provide some references for the teaching of mathematics teachers.