To improve mathematics classroom instruction efficiency is one basic task of study on mathematics education. 提高数学课堂教学效率是数学教育研究的一项根本任务。
The lively audio-visual display used in multi-media audio-visual teaching not only enriches the teaching resources and teaching methods, but also improves the teaching efficiency. 摘要多媒体电教设备教学采用生动活泼的声像显示，不仅丰富了教学资源，扩充了教学手段，而且提高了课堂教学效率。
