当今社会已进入信息时代,计算机进入课堂已不再是什么新鲜事。使用多媒体进行教学,打破了“一支粉笔—一本书—一张嘴”的传统教学方法。多媒体课件的运用,能更好地吸引学生的注意力,激发学习兴趣,发展思维能力;能优化教学内容,突出教学重点和难点;能减轻教师工作强度,提高教学效果。但多年的教学实践证明:运用多媒体教学,打造高效课堂,还是教师自制的课件更实用。一、在琳琅满目的软件市场所购买的教学课件,由于受商品 Today’s society has entered the information age, the computer into the classroom is no longer nothing new. Using multimedia to teach, breaking the “a chalk - a book - a mouth ” traditional teaching methods. The use of multimedia courseware can better attract students’ attention, stimulate their interest in learning and develop their thinking ability. They can optimize the teaching content, highlight the teaching points and difficulties, reduce the work intensity of teachers and improve the teaching effect. However, many years of teaching practice has proved that the use of multimedia teaching, creating efficient classrooms, or teacher-made courseware is more practical. First, in the dazzling array of software market to buy teaching courseware, due to the goods