一、问题的提出教学实践表明,初中生对力和运动关系的认识,更接近亚里士多德的观点.高一学生要在头脑中建立正确的力和运动的关系,并非一帆风顺.具体表现为处理实际问题时,一些错误观点不时地冒出来,这是有深刻原因的.第一,由于在现实生活中摩擦力总是存在的,而且往往对物体的运动起阻碍作用,所以学生自然而然地产生了必须有一个外力才能“使物体运动”的直觉,且这种认识根深蒂固.第二,学生对“假设 First, the question put forward Teaching practice shows that junior high school students on the relationship between force and movement closer to Aristotle’s point of view, high school students in mind to establish the correct relationship between power and movement, not smooth. There are profound reasons for mistaken ideas to emerge from time to time in order to deal with practical problems. First, students naturally behave because friction is always present in the real world and often impedes the movement of objects There is an instinct that there must be an external force to ”move the object," and that this knowledge is deeply rooted.