在教学中,教师要让学生在观察、猜测、交流、实践等活动中逐步体会数的产生、形成与发展的过程,感受数学的魅力,从而有效地促进学生数感的发展和数学素养的提高。一、联系生活经验,表达交流信息,萌发数感“数感”不是通过传授而能得到培养的,更重要的是让学生自己去感知、发现,知道在学习生活中处处有数的存在,很多问题需要用数学的思想和方法去解决,从而学习用数来概括、表达自己对事物的认识,并在此过程中萌发数感。因 In teaching, teachers should make students gradually understand the process of formation, formation and development of observation, speculation, communication and practice and feel the charm of mathematics so as to effectively promote the development of students’ sense of number and the improvement of mathematical quality . First, contact life experience, to express the exchange of information, germination number sense “number of sense ” can not be taught through training, more importantly, let the students themselves to perceive, discover, know that there are a lot of existence in the learning life, Many problems need to be solved with mathematical ideas and methods, thus learning to summarize with numbers, to express their own understanding of things, and in the process of germination sense of number. because