多媒体技术在研究课、示范课、竞赛课中的应用越来越普遍,这是一件好事,它使教学手段越来越先进,它使课堂教学方式越来越灵活,它使课堂教学越来越充满活力。一、有利于创设教学情境,但会“华而不实”创设教学情境的主旨是:通过赋予知识鲜活的背景,激发学生的学习兴趣,启迪学生思维,激活课堂。通常的“一堂课引入得 It is a good thing that multimedia technology is becoming more and more popular in research class, demonstration class and competition class. It makes teaching methods more and more advanced. It makes the classroom teaching more and more flexible, The more energetic. First, the teaching environment is conducive to the creation, but will be ”flashy“ The main purpose of creating a teaching situation is: By giving a vivid background to stimulate students' interest in learning, enlighten students thinking, activate the classroom. Usually ”a lesson introduced