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我们在九年义务教材自然第九册《凝结》一课教学中，用对比实验的方法，培养学生的逻辑思维能力，运用因果关系中的差异法，判断水蒸气凝结的原因，向学生进行科学自然观的教育，最终找出事物之间的变化原因和规律。自然教学过程的基本模式是观察实验BABCD运用了解谈话→事实→
In the nine-year compulsory teaching of natural ninth book “condensation” teaching, using comparative experiments to develop students' logical thinking ability, the use of causal differences in the law to determine the causes of water vapor condensation, to students in science Education of nature, and ultimately find out the causes and laws of change between things. The basic mode of natural teaching process is to observe the experiment BABCD use to understand the conversation → fact →