学生在学习科学概念之前,他们对这些概念大都有了一定的认识和了解,这种已有的认识和了解即为科学学习中的前概念。前概念在学生的科学学习中扮演着非常重要的角色。新概念的形成建立在它的前概念基础之上。当科学概念和前概念比较一致时,学生就容易理解;反之,他们就会觉得很难 Before students learn the concept of science, most of them have some understanding and understanding of these concepts. This existing understanding and understanding are the first concepts in the study of science. The preconception plays a very important role in students’ science learning. The formation of a new concept is based on its preconceptions. Students are easy to understand when scientific concepts are more in line with their predecessors; on the contrary, they find it difficult