新课程“强调对数学的认识和理解,无论基础知识、基本技能的教学,还是数学应用的教学,都要帮助学生更好的认识数学,认识数学的思想和本质,这首先应体现在对基本概念和基本思想的理解和掌握上”.本文对把握概念教学的关键,挖掘概念的本质 The new curriculum emphasizes understanding and understanding of mathematics, regardless of basic knowledge, basic skills teaching or teaching of mathematics applications, to help students better understand mathematics, understanding of the thought and essence of mathematics, which should first be reflected in the Basic concepts and basic ideas on understanding and mastery. "This article is the key to grasp the concept of teaching, mining the essence of the concept