讲授大气的热力环流、逆温现象、锋面时,由于无法直接观察到空气运动轨迹,课堂教学主要依靠图文、动画或生活实例来展开。为弥补这一教学方式的不足,笔者做了一个演示装置,可以将冷、热状况不同的两个气团相遇时的状态直观表现出来。一、演示装置的结构与功能如图1、图2所示,为了便于学生观察演示实验,装置的主要制作材料是透明亚克力板,主体结构是由两个 Teach the atmosphere of the heat circulation, the inverse temperature phenomenon, the front, due to the direct observation of the air can not be tracked, classroom teaching mainly rely on graphic, animation or life examples to start. To make up for this lack of teaching methods, I made a demonstration device, you can cold, hot condition different air masses encounter the state of the visual display. First, the structure and function of the demo device shown in Figure 1, Figure 2, in order to facilitate students to observe the demonstration experiment, the device is the main production of transparent acrylic material, the main structure is composed of two