在应用整体法时,学生易受物体的位置、形状和相互作用力的干扰,表面上在用整体法,实际仍然是从单个物体分析。如何克服思维障碍正确运用整体法呢?实践表明把可视为整体的对象用一方块代替,这样就没有物体间的位置、形状、空间影响和相互作用力干扰的问题了。以下探讨平衡问题中该模型的四种典型运用。一、叠放体的方块模型物体间直接接触,通过挤压、摩擦等相互作用,在运动状态相 When applying the holistic approach, students are susceptible to interference with the position, shape, and interaction of objects. On the surface, in the holistic approach, the actual analysis is still from a single object. How to overcome the obstacle of thinking to correctly apply the whole method? Practice shows that the object that can be considered as a whole is replaced by a square, so there is no problem of the position, shape, space influence and interaction interference of objects. The following discusses four typical uses of the model in the equilibrium problem. First, the stack of square box model objects in direct contact with each other through the extrusion, friction and other interactions in the state of motion phase