一、引导学生明确观察的目的和任务,这时培养观察能力的重要条件例如:在做观察鲫鱼的实验中,如果学生不明确观察的目的,就会只看热闹,只顾观察鱼鳍被剪去之后,游动不协调的样子。教师如果事先提出观察目的和重点,学生就会在观察中努力寻求鱼鳍的作用。这样,观察就会收到良好的效果。又如:在讲单、双子叶植物在形态上的差异时,可以让学生到野外采集一些单、双子叶植物,然后让学生从根、茎、叶、花、果实、种子六个方面来进行对比观察,也会收到良好的效果。二、要有充分的观察准备,提出观察的具体 First, to guide students to clearly observe the objectives and tasks, then train the ability to observe the important conditions For example: in the observation of the carp experiment, if the students do not clearly observe the purpose, it will only watch the fun, just observe the fin is cut Afterward, the movement is not coordinated. If the teacher puts forward the purpose and focus of observation in advance, the student will try hard to find the function of the fish fin during the observation. In this way, observation will receive good results. Another example: in speaking single, dicotyledon in morphological differences, you can let students to the field to collect some single, dicotyledonous plants, and then let the students from the roots, stems, leaves, flowers, fruits, seeds six aspects Comparative observation, will also receive good results. Second, we must have adequate observation and preparation, put forward the specific observation