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《琥珀》这篇课文,想象合理,推理严密,描写细致。它不仅是对学生进行“爱科学”教育的好教材,也是培养学生观察能力、想象能力,尤其是推理能力的好教材。在教学时,我着重进行了如下三个方面的尝试。一、逆顺序,找根据,训练推理能力。《琥珀》以作者推测琥珀形成的过程作为主要内容,进行了重点叙述。从文章组材来看,作者在介绍琥珀形成和被发现的经过以后,为什么要描写琥珀的特征呢?这是因为这块琥珀是作者推测、想象的根据。教学时,我就利用教材这一特点,在学生理清课文内容的基础上,抓住课文末尾的几句话,帮助学生逆着课文的
“Amber” this text, imagine reasonable, rigorous reasoning, described in detail. It is not only a good teaching material for students to “love science” education, but also a good teaching material to train students' observation ability, imagination ability and in particular reasoning ability. In teaching, I focused on the following three aspects of the attempt. First, the reverse order, find the basis for training reasoning ability. “Amber” focuses on the process by which the authors speculate on the formation of amber as the main content. From the point of view of the composition of the article, why do we describe the characteristics of amber after introducing the formation and discovery of amber? This is because this piece of amber is the author's conjecture and the basis for his imagination. Teaching, I use the characteristics of textbooks, students sort out the content of the text, based on the text at the end to seize a few words to help students against the text