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《数学课程标准》指出:数学教学必须要对学生现有的认知能力和已经储备的知识体系进行精确的考量,从而确定学生最为需要的知识内容,选择适切的教学策略。在数学教学中,经常被使用到的情境创设是一个重要的教学方法。定位准确的情境不仅是沟通教学内容与学生实际生活的有效桥梁,更是连接原始知识与与教学内容的高速通道。教师可以借助创设的情境来促进学生的思维由抽象向形象转变、由肤浅向深入迈进、由机械向生趣突围,从而在以学定教中走出情境创设的新路径。
Mathematical Curriculum Standards states that mathematics teaching must accurately consider students’ current cognitive abilities and stored knowledge systems, so as to determine the most needed knowledge contents and select suitable teaching strategies. In mathematics teaching, often used to create the situation is an important teaching method. The accurate positioning of the situation is not only an effective bridge to communicate the teaching content with the students’ actual life, but also the high-speed access to connect the original knowledge with the teaching content. Teachers can use the situation created to promote students’ thinking from the abstract to the image of the shift from the superficial to the depth, by the mechanical breakthrough to the fun, so in learning to set foot out of the situation to create a new path.