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学生不容易正确区分根和地下茎,解决这个问题,我想主要的方法有两条。第一是多提供一些材料,只观察一种两种是不能获得生动具体的认识的。第二是指导他们弄清特征,找出根和地下茎的共同点和不同点。
Students do not easily distinguish between roots and underground stems correctly. To solve this problem, I think there are two main ways. The first is to provide more materials, and only one or two kinds of material can not be vividly identified. The second is to guide them to figure out the features and find out the similarities and differences between roots and underground stems.