《义务教育数学课程标准》中有六个核心概念:数感、符号感、空间观念、统计观念、应用意识、推理能力。“数感”摆在首要的位置,由此可见新课标十分强调和重视学生深刻理解数感,注重发展学生的数感。作为初中生,建立数感应有一定的基础,本人认为重点应放在 There are six core concepts in Mathematics Curriculum Standard for Compulsory Education: sense of number, sense of sign, concept of space, concept of statistics, sense of application, reasoning ability. “Number sense ” placed in the primary position, we can see that the new curriculum is very emphasis and attention to students a profound understanding of number sense, focus on the development of students sense of the number. As a junior high school student, there are certain foundations for establishing the number of senses, and I think the emphasis should be placed on it