论文部分内容阅读
一、引生活泉水,赢课前精彩《科学》是以学生的生活为基础,要想让学生在学习活动中有所收获,我们要充分了解学生的知识水平、认知结构,用生活中常见的材料来做实验,去探究科学的道理,所以科学课前准备非常重要。翻开科学课本,只有寥寥的几幅图,简短的几句话,这就需要教师在上课前要做大量的准备工作,去收集材料,去观察,去实验。如在讲青岛版五年级上册《杠杆》一课时,我提前准备了一块大石头(石
First, the introduction of living springs, wonderful before winning “Science” is based on the student’s life, in order to make students gain some learning activities, we must fully understand the level of knowledge of students, cognitive structure, with common life The material to do experiments to explore the scientific truth, so science preparation is very important. Open science textbook, only a few pictures, a few short sentences, which requires teachers to do a lot of preparatory work before class, to collect materials, to observe, to experiment. As in the fifth edition of Qingdao version of “leverage” a lesson, I prepared in advance a large stone (stone