科学是一门以实验为基础的学科,实验教学是培养学生观察动手能力的主要途径。但由于条件的限制,有些科学内容是很难通过讲解与实验完成的,不易达到教学的要求。经过长期的教学实践后发现,在教学中合理地运用多媒体可以较好地弥补教学上的不足,提高教学效果,增强学生的学习兴趣,拓展了科学实验教学的时间和空间,解决了一些传统教学悬而未决的困惑,也带来了许多新的问题。同时也能给我们的课堂绽放出生命的活力。那么如何合理运用 Science is an experiment-based discipline. Experimental teaching is the main way to train students’ abilities to observe. However, due to the limitations of the conditions, some scientific contents are difficult to complete through the explanation and experiment, and are not easy to meet the teaching requirements. After long-term teaching practice found that the rational use of multimedia in teaching can make up for the lack of teaching, improve teaching effectiveness and enhance students’ interest in learning, expanding the time and space of scientific experimental teaching, to solve some of the traditional teaching Unresolved puzzles have also brought many new problems. At the same time, it can also bring vitality to our classroom. So how to use it wisely