观察和实验是人类认识与研究自然的基本途径,也是引导学生热爱科学,激发学习兴趣,调动学生学习积极性、主动性和创造性的重要方法和有效途径。教会学生观察和实验的本领,是科学实验教学的重要目的之一。在科学实验教学中,教具以它的直观性在小学实验教学中起着非常大的作用。自制教具不仅为学校节省了开支,而且锻炼了学生的动手能力,同时也对教材进行了补充,取得了较好的效果。 Observation and experiment are the basic ways for people to understand and study nature. They are also important ways and effective ways to guide students to love science, stimulate their interest in learning, and arouse the enthusiasm, initiative and creativity of students. The ability of the students to observe and experiment with the teaching is one of the important purposes of science experiment teaching. In scientific experiment teaching, teaching aids plays an important role in the experimental teaching in elementary schools with its intuition. Self-made teaching aids not only save school expenses, but also exercise the ability of students, but also to supplement the teaching materials, and achieved good results.