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立体图形“圆柱和圆锥”和学生以前学过的长方体和正方体相比,表面除了平面还有曲面,这给学生的认识和解决相关实际问题带来了一定难度,怎样更好地把握教材,上好“圆柱和圆锥”单元的起始课,为后面解决圆柱和圆锥相关实际问题的教学打下基础?教学中我努力创设情境,引导学生在自主探索、动手实践中掌握圆柱和圆锥的知识。具体做法是:一、在独立思考、自主探索中发现圆柱和圆锥的特征六年级的学生已经有了认识长方体和正方体的经验,因此在
Compared with cuboids and cubes that students have learned before, the surface is not only flat but also curved, which brings some difficulties for students to understand and solve related practical problems and how to better grasp the teaching materials , The good start of the “cylinder and cone” unit, lay the foundation for the latter to solve the practical problems related to cylindrical and conical? Teaching, I strive to create situations to guide students in their own exploration, hands-on practice to grasp the cylinder and cone knowledge. The specific practices are: First, in independent thinking, self-exploration to discover the characteristics of the cylinder and cone Sixth grade students already have the knowledge of cuboids and cubes, so in