用“分解质因数”法求正方体棱长

• 作 者: 白春平 白振颢
• 机 构: 石城县小松镇径里小学
• 出 处: 江西教育
• 发表日期: 2004年期
• 关键词: 分解质因数 棱长 小学高年级学生 乘法交换律 解题思路 白春 石城县

用“分解质因数”法求正方体棱长探讨与争鸣在教学中，学生常常会提出一些超越教材范围的问题。比如一次在教学“正方体的体积”时，学生问：“一个正方体体积是３３７５立方米，如何求它的棱长？”对这样的提问，我不仅向他们解释这是将来升入初中后会学到的知识，鼓...

Using the “factoring quality factor” method to find the cube edge length  Discussion and contention  In teaching, students often put forward some problems beyond the scope of the textbook. For example, when teaching “the volume of a cube,” a student asks: “One cube has a volume of 3,375 cubic meters and how can I find it?” I asked them not only to explain to them this is what they will learn in the future when they enter junior high school To the knowledge, drums ...