5年级:各位家长朋友,你们好。我们又开始一起欢度新的学期了。这一段时间我们将要学习“图形的变换”、“因数和倍数”“与长方体和正方体”这三个单元的内容。图形的变换有三种基本形式,平移、旋转和轴对称。本单元学习轴对称和旋转。本单元属于空间与图形领域,要求孩子通过学习发展空间观念。比较好的方法是多动手实践。实践的途径有两个,一个是动手画一 Grade 5: Parents, friends, how are you? We started to celebrate the new semester again. This period of time we will have to learn the contents of the three elements of “Transformation of graphics”, “Factor and multiple” and “And cuboid and cube”. There are three basic forms of graph transformation, translation, rotation, and axisymmetry. This unit learns axisymmetry and rotation. The unit belongs to the field of space and graphics, requiring children to learn through the development of space concept. The better way is to practice more. There are two ways to practice, one is to paint one