科学是学生最感兴趣的追求之一,学生喜欢实验,喜欢观察事物,乐于讲述观察结果,乐于探究事物的来龙去脉。如何促进、保持学生对科学的兴趣爱好以及对科学的持续学习便成为教师的一大目标。要达到上述目标,不能仅仅是讲述性的单向教学,教师的主要精力不应用在让全体学生集中听讲和维持教室良好的秩序上,而应以学生的“学”为中心,教学中应以引发各种“交往”和“联 Science is one of the most sought-after pursuits of students. Students like to experiment, like to observe things. They are willing to tell the result of observation and are willing to explore the context of things. How to promote and maintain students’ interest in science and their continuous learning of science has become a major goal of teachers. To achieve the above goal, we should not just talk about one-way narrative teaching. The main energy of teachers should not be used to let all the students concentrate on listening and maintaining a good classroom order. Instead, they should focus on the students’ learning and teaching Should trigger a variety of ”contacts“ and ”couplets."