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就像语文有语感,音乐有乐感,美术有美感一样,数学有数感。数感是学生对“数”的敏感、精确、丰富的感悟,数学课程标准明确指出:“在数学课程中,应当注重发展学生的数感”。而数感主要表示形式为理解数的意义,能用多种方法表示数,能在具体的情景中把数的大小关系,能用数来表示和交流信息;能为解决问题而选择适合的算法;能估计运算的结果,并对合理性作出解释。可见数感的建立是提高学生数学素养的重要标志,对学生的发展具有重要的意义。注重数感的培养是
Just as language has sense of language, music has music, art has beauty, mathematics has sense of number. Sense of number is the students “number ” sensitive, accurate, rich sentiment, mathematics curriculum standard clearly states: “In the mathematics curriculum, should pay attention to the development of students ’sense of number ”. The main sense of the number of senses for the understanding of the significance of the number can be expressed in a variety of ways, in a specific scenario the size of the relationship between numbers can be used to represent and exchange information; can solve the problem and choose the appropriate algorithm ; Be able to estimate the result of the operation and explain the rationality. Visible sense of the establishment of an important symbol of improving students’ mathematical qualifications, the development of students is of great significance. Pay attention to the number of flu culture is