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空间观念的培养是“图形与几何”学习的核心目标之一。如何在数学课堂中采取有效的教学策略帮助学生建立空间观念,是我在教学中不断探究和思考的问题。下面就以《圆柱和圆锥的认识》一课为例,谈一下自己的认识与思考。一、联系生活,形成初步表象学生对几何图形的最初认识是从生活中来的。我们的学习要与生活紧密相连,让学生在生活中观察、发现、抽象,由生活走向数学,形成相关图形的初步表象。比如,在教学《圆柱和圆锥的认识》一课时,我首先
The cultivation of the concept of space is one of the core goals of “Graphics and Geometry.” How to take effective teaching strategies in mathematics classrooms to help students to establish the concept of space is a problem that I constantly explore and think in teaching. Here’s a “cylinder and conical understanding” lesson as an example, talk about their own understanding and thinking. First, contact with life, the formation of a preliminary appearance Students first understand geometry is from life. Our study should be closely linked with life so that students can observe, discover and abstract in life and move from life to mathematics to form a preliminary appearance of the related graphic. For example, in teaching a lesson about Cylinder and Cone, I first of all