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高中物理比之初中物理,概念比较严格,理论性较高,并且更加抽象,陡度较大。学生学习感到十分困难,尤其对一些教学难点,更感到“看不见,模不着,”无法想象,只能生吞活剥,不能灵活掌握和运用。针对这一情况,我们运用了图象教学,突破难点,效果令人满意。图象不仅能给学生更多的信息,而且能象电影的慢镜头一样,使学生看清楚物理过程以及物理量之间的变化关系。一些教学理论已经指出,“看得见的比听到的有效很多,图象教学正是把看不见的抽象理论变成为看得见的东西,所以学生得到的印象比较强烈和深刻。一、通过图象可看见物理过程过去讲到”在额定功率下机车行驶的最大速率“时,
Compared with junior high school physics, high school physics is more rigorous in concept, more theoretical, and more abstract and steeper. Students feel very difficult to learn, especially for some teaching difficulties, they feel even more “invisible, incomprehensible,” and “unthinkable. They can only live and work, and cannot be flexibly mastered and applied. In view of this situation, we have used image teaching to overcome difficulties and have satisfactory results. Not only does the image give students more information, but it also allows the student to see the physical process and the changing relationship between physical quantities like the slow motion of a movie. Some teaching theories have already pointed out that “visible is much more effective than what we have heard, and image teaching is precisely turning invisible abstract theories into visible things, so students’ impressions are more intense and profound. , through the visible physical process of the image, when speaking of the ”maximum rate of locomotive running at rated power,"