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根据数学建模的理论和概念教学的要求,结合小学数学课程的教学特点和研究班级学生的实际,在实践归纳和理性演绎的基础上,我们提出了小学数学概念教学中数学建模的一般操作方式。下面结合“认识平行四边形”这一内容,来阐述小学数学概念教学中建模的四大环节。第一环节:呈现原模,建立表象课始,呈现生活中的图片——校园风景图,提问:在我们的校园中,哪里有平行四边形?在寻找中,唤醒学生的记忆,建立起“平行四边形”的表象。表象是人脑对客观事物感知后留下的形象。表象接近于感知,具有一定
According to the theory of mathematical modeling and the demand of conceptual teaching, combined with the teaching characteristics of primary mathematics curriculum and the study of students’ actualities in class, we put forward the general operation of mathematical modeling in elementary mathematics conceptual teaching based on the practice induction and rational deduction. the way. The following combination of “understanding of the parallelogram ” this content, to illustrate the concept of primary school mathematics teaching four major aspects of modeling. The first session: presenting the original model, the establishment of the image of the beginning of the lesson, showing pictures of life - Campus Landscape, Q: In our campus, where the parallelogram? In the search, wake up students’ memory, establish “ Parallelogram ”appearance. The appearance is the image that the human brain left behind after perceiving the objective things. Appearance is close to perception, with a certain