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高中生物教学备课中设计课堂练习是非常重要的一环.按其练习的作用,可分以下几种类型. 一、引入型这类题目意在利用学生已知的知识作为向导,一步一步地引入新的知识,通过练习教师可以集中学生的注意力,激发学生的学习兴趣,同时拓宽学生的思路. 例如,在讲光合作用这节课时,在新课前可以让学生做以下一组练习题:1、植物所需要的养料从哪里来的?2、根从土壤中吸收是哪些养料?3、植物要长大要开花结果,
Designing classroom exercises in high school biology teaching preparation lessons is a very important part. According to the role of practice, it can be divided into the following types. First, the introduction of this type of topic is intended to use the knowledge known to students as a guide, step by step to introduce The new knowledge, through the practice of teachers, can focus students’ attention, inspire students’ interest in learning, and broaden students’ thinking. For example, in the photosynthesis class, students can do the following set of exercises before the new lesson: 1. Where does the nutrients the plants need come from? 2. What are the nutrients that the root absorbs from the soil? 3. The plants must grow when they grow up.