实验是科学教学的主要形式和手段,很多的科学知识是通过实验来验证结果的,教材中并没有明确的结果,需要师生共同实验,然后从实验结果中建构科学知识。构建一堂高效的小学科学课,是我们做教师追求的目标,从多种途径、多个层面、多个环节着手,从一点一滴开始,启蒙学生的科学意识,从而形成高效教学的局面。 Experiments are the main form and means of science teaching. Many scientific knowledge verify the result through experiments. There is no definite result in the teaching materials, which requires teachers and students to experiment together and build scientific knowledge from the experimental results. To build an effective primary school science class is the goal we pursue as a teacher. Starting from a variety of ways, levels and links, starting from a little bit, we enlighten students’ scientific awareness and form an efficient teaching situation.