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长方体模型是学生熟悉的数学模型,在立体几何的教学和解题的过程中经常构建长方体模型,既可起到培养学生的空间想象能力,提高学习兴趣和效率,又可提高学生的解题能力。本文撷取几个例题来说明如何构建长方体(正方体)模型解立体几何题。
The cuboid model is familiar to the students. The cuboid model is often constructed during the process of teaching and solving of the three-dimensional geometry. It can not only cultivate students’ imagination in space, improve their interest and efficiency in learning, but also improve their ability to solve problems . This article picks up a few examples to illustrate how to construct a cuboid (cube) model to solve a solid geometry problem.