论文部分内容阅读
多年的小学数学课堂教学,让我觉得抓住以下几方面的关键教学,对搞好小学数学教学至关重要。一、经历探索过程,知晓知识由来在教学《圆柱体积》一课时,为了让学生探究,理解圆柱的体积公式,设计了把圆柱切拼成长方体的探究环节:课件出示例题,先把圆柱沿底面直径切成偶数等分,然后再拼成长方体,引导学生观察长方体和圆柱的关系,再根据长方体的体积公式推导出圆柱的体积计算公式。在这一教学环节中,学生亲身体验经历了将圆柱转化
Many years of primary school mathematics classroom teaching, I think the key to grasp the following aspects of teaching, is essential to improve primary mathematics teaching. First, the process of exploration, knowledge of the origin of knowledge In the teaching of “cylinder volume” a lesson, in order to allow students to explore and understand the formula of the cylinder volume, designed to cut the cylinder into a rectangular puzzle inquiry section: courseware examples, first cylinder along the bottom Diameter cut into even numbers, and then spell into cuboids to guide students to observe the relationship between the cuboid and cylinder, and then deduced according to the cuboid volume formula cylinder volume formula. In this teaching session, students experience the transformation of the cylinder