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通过合理组织纸飞机游戏,帮助学生在游戏中获得感悟,建构鸟类飞行取决于的三个要素,并利用生活经验、相关教具与课本知识将抽象概括的三个要素具体化,解决教学重点,明确生物结构与功能相适应的意识。孩子天生对自然有着浓厚的兴趣,当学生提出鸟类飞行的要素,鸟类的生存还有哪些不利因素等,通过活动、交流、分享、获得验证或修订自己想法的时候,全体学生的思维得到了深化与发展,形成积极的科学态度。学生认为鸟类飞行是由于翅膀,是学生已有图式,通过人安装翅膀能否飞行,与学生已有经验形成认知冲突,并通过本节课的学习来顺应图式,明确鸟类的内涵和外延。
By reasonably organizing paper airplane games to help students get the feeling in the game and building the three elements that bird flying depends on and using the life experience, related teaching aids and textbook knowledge to concrete the three elements of abstract summarization to solve the teaching emphasis, Clear biological structure and function to adapt to the consciousness. Children naturally have a strong interest in nature. When students come up with the elements of bird flight and the unfavorable factors of bird survival, etc., the thinking of all students can be obtained through activities, exchanges, sharing, verification or revision of their own ideas Deepen and develop, and form a positive scientific attitude. Students think that flying birds is due to their wings, that students have a schema, that they can fly by installing wings, that they have a cognitive conflict with the students’ experiences, and that they can follow the schema through this lesson to clarify whether birds Connotation and extension.