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《数学课程标准》指出:“数学教学,应从学生已有的知识经验出发,让学生亲身经历参与特定的教学活动,获得一些体验,并且通过自主探索,合作交流,将实际问题抽象成数学模型,并对此进行解释和应用。”心理学研究表明,根据小学生的年龄、心理特点,知识基础和认知规律,当学习内容和学生熟悉的生活情境越贴近,学生自觉接纳知识的程度就越高。所以,从数学的需要出发,去激活学生的生活经验,挖掘数学知识的生活内涵,捕捉生活中
The standard of mathematics curriculum states that mathematics teaching should proceed from the students’ prior knowledge experience, let the students experience the participation in specific teaching activities for some experience, and abstract the actual problems into mathematical models through independent exploration, cooperation and exchange , And explain and apply this. "Psychological studies show that according to the age, psychological characteristics, knowledge base and cognitive rules of primary school pupils, when the learning content and students’ familiar life situations are closer, the degree to which students consciously accept knowledge The higher. Therefore, starting from the needs of mathematics, we should deactivate the students’ life experience, explore the life connotation of mathematics knowledge, and capture the life