《数学课标》中指出:“课程内容的学习,强调学生的数学活动,发展学生的数感……”所谓数感,是学生对数与现实问题的一般理解,是一种主动的、自觉的理解数和运用数的意识。因此,对学生进行数感的培养是十分必要的。在 “Mathematics Curriculum Standard” pointed out: “The content of the course of study, emphasizing students’ mathematical activities, the development of a sense of the number of students ... ...” The so-called sense of the number of students is a general understanding of logarithm and practical issues, is an active , Consciously understand the number and the use of the number of consciousness. Therefore, it is very necessary to cultivate students’ sense of number. in