一、观察和实验是科学探究的基本途径观察和实验是人类认识自然界的基本途径,也是学生学习科学课的一个重要的特点,在探究学习的过程中,我总是把大量时间让学生进行观察,例如在教学《蜗牛》时,我让学生观察记录蜗牛身体的颜色,身体的组成。重点展开的是头部、腹部、尾部。头部的眼睛、触角、嘴,再就是蜗牛身体最突出的部位蜗牛壳,以及爬行方式等。我还会提一些问题,学生可以根据自己感兴趣的问题,自愿结合,分成小组,到外面去观察、研究,有的小组把蜗牛拿到教室里观察,有的小组把蜗牛带回家去观察。在观察过程中,有的小组拿不同的食物来喂养蜗牛,观察它喜欢吃的食物,以及它怎样吃食物,也就是吃食物的样子。还有的小组专门 I. Observation and Experiment are the Basic Ways of Scientific Inquiry Observation and experiment are the basic ways for mankind to understand nature and are also an important feature of students’ learning of science. During the process of inquiry and study, I always spend a lot of time for students to observe For example, when teaching “snails”, I asked students to observe the color of snail’s body and the composition of the body. Focus on the head, abdomen, tail. Head of the eyes, tentacles, mouth, then snail body is the most prominent parts of the snail shell, and crawling and so on. I will also raise some questions. According to their own interests, students can voluntarily combine into groups to observe and study. Some groups take the snails to the classroom for observation. Some groups take the snails home to observe . During the observation, some groups took different foods to feed the snails, observe what they like to eat, and how they eat food, that is, eat food. There are other groups specialized