数感是人的一种基本的数学素养,是人主动、自觉地理解和运用数的态度和意识。具有良好数感的人,对数的意义和运算有灵敏而强烈的感觉、感受和感知能力,并能作出迅速而准确的反应。在教学中,只有具备了良好的数感,学生中 Sense of a few people is a basic mathematical literacy, is a person’s initiative and consciously understand and use the number of attitudes and awareness. People with a good sense of the number, the significance of the logarithm and the operation of a strong and sensitive feeling, feeling and perception, and can make rapid and accurate response. In teaching, only have a good sense of the number of students