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“动动手”是人教版初中《生物》教材要求学生在课外时间进行科技小实验的内容。通过“动动手”,可以激发学生学习生物学的兴趣,复习巩固学到的基础知识,增强感性认识,并有助培养学生独立操作的能力。我校按教材中“动动手”的类型和特点,根据实际情况组织学生开展了这一活动。 一“动动手”的分类 综合初中生物教材上所有的“动动手”,大致分为以下五类: 1、巩固知识类 指从巩固本节所学的基础知识出发,如:“再看看几种种子的结构”,“亲眼看看种子怎样萌发和长成幼苗”,“看看根是否真的向地生长”,“看看水分沿着茎的什么部分上升”等。 2、知识准备类 指为下节要学的内容作前期准备的,如“课外采集叶子”为学习叶的形态
“Practice” is the content of the “Biology” textbook of the junior high school education school that requires students to conduct small experiments in science and technology outside of class hours. Through “kicking hands”, students can stimulate students’ interest in learning biology, review and consolidate the basic knowledge they have learned, enhance their perceptual knowledge, and help develop their ability to operate independently. Our school organizes students to carry out this activity according to the actual situation and the type and characteristics of the “hands-on” in the teaching materials. A “hands-on” classification of all “moving hands” on junior high school biology textbooks can be roughly divided into the following five categories: 1. Consolidating knowledge refers to consolidating the basic knowledge learned in this section, such as: “Let’s see again ”Several Seed Structures“, ”See for yourself how the seeds germinate and grow into seedlings“, ”Look at whether the roots really grow to the ground,“ ”Look at what parts of the stem the water rises along.“ 2, knowledge preparation class refers to the preparation for the next section to be learned, such as ”leaves outside the class" for learning leaf morphology