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《数学课程标准》明确指出:数学教学要紧密联系学生的生活环境,从学生的经验和已有知识出发,创设有助于学生自主学习、合作交流的情境,使学生通过观察、操作、归纳等活动,掌握基本的数学知识和技能,发展他们的能力,激发对数学的兴趣,以及学好数学的愿望。生活离不开数学,数学离不开生活,数学知识源于生活而最终服务于生活。数学家华罗庚曾经说过:宇宙之大,粒子之微,火箭之速,化工之巧,地球之变,日用之繁,无处
The standard of mathematics curriculum clearly states that mathematics teaching should be closely linked with the students’ living environment, starting from the students’ experience and existing knowledge, creating situations conducive to students’ autonomous learning and cooperation and exchange so that students can observe, manipulate, summarize, etc. Activities, master basic mathematical knowledge and skills, develop their abilities, stimulate their interest in math, and their desire to learn math. Life is inseparable from mathematics, mathematics can not be separated from life, mathematical knowledge comes from life and ultimately serve life. Hua Luogeng mathematician once said: the universe, the micro-particles, the rocket speed, the cleverness of the earth, the Earth’s change, the complex of daily use, nowhere