比较,是人在思想上确定事物之间的异同和关系的思维过程。它是我们认识一切客观事物或现象的重要途径。乌申斯基说:“比较是一切理解和一切思维的基础。我们正是通过比较来了解一切的。如果我们面前出现某种新东西,我们既不能拿它去同什么东西比较,又不能把它同什么东西区别开来……那么,我们就不能对它形成一种思想,也不能对它说出一句话来。”因此,学生的比较能力在《自然》学习中,起着十分重要的作用。具体表现为以下两个方面。第一,它能帮助学生理解《自然》概念的实质,学好自然知识。例 Comparison, is the process of thinking in the determination of similarities and differences between people and the relationship between the thinking process. It is an important way for us to recognize all objective things or phenomena. Usinski said: “Comparisons are the basis of all understanding and all thinking. We know everything by comparison. If something new appears before us, we can not compare it with anything, What distinguishes it from something ... then we can not form an idea about it or say a word to it. ”Therefore, the comparative abilities of students play an important role in“ natural ”learning effect. Specific performance for the following two aspects. First, it helps students understand the nature of the concept of “nature,” and learn about natural knowledge. example