借助电教手段可以激发学生的学习兴趣,它能运用图、文、声、像并茂的特点搭建逼真生动的教学环境,使教学图像动静结合,教学气氛生动活泼,充分调动并提高学生的积极性,更加把教学过程中说不清、理解不透的知识形象化,直观化、简单化,将知识透彻、立体地展现在学生面前,促使学生把握学习的主动性,让学生学习时身心愉悦,创造快乐的课堂,达到主动学习的目的。 With the help of audio-visual teaching methods, students 'interest in learning can be aroused. The teaching environment can be vividly and vividly combined with the vivid and vivid teaching atmosphere through the use of pictures, texts, sounds and images, and more students' enthusiasm can be enhanced. The teaching process can not tell, understanding of the visualization of information visualization, visualization and simplification, the knowledge thoroughly, three-dimensional display in front of students, encourage students to grasp the initiative of learning, so that students learn physical and mental pleasure, create happiness The classroom, to achieve the purpose of active learning.