实施素质教育的关键在课堂教学,而课堂教学的一个重要方面就是发扬全体学生的主动精神、自主意识、发展学生的健康个性。教师在课堂教学中巧妙的运用电教手段,是创设情景、激发学生学习兴趣、促进学生思维活动、提高教学效果的有效手 The key to implementing quality education is classroom teaching. An important aspect of classroom teaching is to promote the initiative, self-awareness and development of students’ individual health. Teachers in the classroom teaching clever use of audio-visual means, is to create scenarios to stimulate student interest in learning, promote student thinking activities, improve teaching effectiveness of effective hands