一、观察能力的培养首先,明确观察目的,养成观察习惯。观察效果如何取决于目的、任务是否明确。例如,在观察氯气与甲烷在光照条件下反应的实验时,如果不明确观察目的,学生只会被混合气体颜色逐渐变浅、集气瓶内液面上升、集气瓶壁出现的黄色小液滴所吸引,而对水槽内析出白色晶体 First, the cultivation of observational ability First, clearly observe the purpose, develop observation habits. How to observe the effect depends on the purpose and the task is clear. For example, when observing the experiment of chlorine gas and methane reacting in the light, if students do not clearly observe the purpose, the students will only be lightened by the gas mixture, the liquid level in the gas cylinder, and the yellow liquid that appears on the cylinder wall. Dripping attracts white crystals in the sink