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一、教材专题化的必要性和重要性教材既是教师开展教学活动的基本素材,又是学生学习的主要材料。依据《全日制义务教育生物课程标准》(以下简称《标准》)编写的现行各种版本的生物教材,其内容在呈现方式上都注意从学生的生活经验出发,创设问题情境,引导学生自主学习、主动探究。然而,现行各种版本的教材在设计上也有明显不利于学生自主探究的缺陷:教材的各个章节相对独立,学生在学习的过程中只能够看到局部,不能够看到整体;学生在学习了某个章节后,不知道今后该学习什么、探究什么,只能被动地被教师和教材牵着走,即教材不能够给予学生明确的学习目
First, the necessity and importance of thematic specialization Textbook is not only the basic material for teachers to carry out teaching activities, but also the main material for student learning. According to the “full-time compulsory education biology curriculum standards” (hereinafter referred to as “standard”) prepared in the current version of the biological textbook, its contents are presented in the way from the students’ life experience, the creation of problem situations and guide students to learn Take the initiative to explore. However, the existing teaching materials of various versions are also obviously detrimental to the students’ self-exploration defects: the chapters of the teaching materials are relatively independent, students can only see part of the learning process, can not see the whole; students are learning After a chapter, I do not know what to learn in the future, to explore what can only passively be taken by teachers and teaching materials, that is, teaching materials can not give students a clear learning head