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《数学课程标准》(实验稿)强调发展学生的数感,而有理数将揭开初中学段培养数感的序幕.本部分的学习,对形成数感、发展数感有着重要作用.数学源于生活,与生活实际有着无法分割的联系.新课标中的大众数学、人文数学的含义之一即是“学以致用”.同时,从学到用是一个学习的过程,是各种能力提高后的结果.本文从认知到熟悉,再到应用,逐步提高,且分类明确,思路清晰,读后能给我们一个全面的认识, 知道有理数考些什么了.
“Mathematics Course Standards” (experimental draft) emphasizes the development of students’ sense of number, and rational numbers will unveil the prelude of cultivating sense of numbers in the middle school. This part of the study plays an important role in forming sense of number and developing number sense. Life has an inseparable connection with the reality of life. One of the meanings of popular mathematics and humanities mathematics in the new curriculum standard is “learning for action.” At the same time, learning from use is a learning process, and it is the improvement of various abilities. After the results, this article from cognitive to familiar, then to the application, gradually increased, and clearly categorized, clear thinking, after reading can give us a comprehensive understanding, know what rational number test.