基于原始物理问题的“物体的浮沉条件及应用”教学设计

Teaching Design of “Floating and Sinking Conditions of Objects and Their Application” Based on Original Physics Problems

摘要: 初中物理教材由以前的结论方式展现给学生物理知识转变为以展示现实生活中的现象、逻辑推理为主的教材编写方式，其中的物理习题来源于现实生活中，这些习题忽略了次要条件而保留了主要因素。在物理课堂教学中有效的开展原始物理问题，可以培养学生的科学思维，提高学生解决实际问题的能力，培养学生勤于思考的好习惯。本文针对《物体浮沉条件》这一主题的教学为例，在讲解《物体浮沉条件》一节的过程中，有意识渗透原始物理问题，逐步培养并提高学生的解决问题的能力。

Abstract: Physics textbooks for junior middle school have changed from showing physical knowledge to showing phenomena and logical reasoning in real life. The physics exercises in the textbooks come from real life and ignore the secondary conditions while retaining the main factors. The effective development of original physics problems in physics classroom teaching can cultivate students’ scientific thinking, improve students’ ability to solve practical problems and cultivate students’ good habits of thinking diligently. In the course of explaining the section “Conditions of Floating and Sinking of Objects”, this paper consciously penetrates primitive physical problems and gradually cultivates and improves students’ ability to solve problems.