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随着信息技术的不断发展,电教媒体以其信息量大、形象直观等优势极快地进入了数学课堂,它改变了传统教学中“一支粉笔、一块黑板、一本书”的课堂教学形式,有效地提高了课堂教学效率。如何充分发挥电教媒体的优势,把它与板书及其它教学媒体相互结合、优势互补,已经成为越来越多教师重视的问题。本期刊发的这组文章希望能引起读者朋友的思考,帮助大家更进一步澄清认识,以更好地使各种教学媒体合拍共振、形成合力,从而取得“1+1>2”的教学效果。
With the continuous development of information technology, audio-visual media has rapidly entered mathematics classroom with its advantages of large amount of information and visual image, which has changed the traditional teaching of “a piece of chalk, a blackboard, a book” classroom Teaching forms, effectively improve the efficiency of classroom teaching. How to give full play to the advantages of audio-visual media, combine it with blackboard and other teaching media and complement each other's strengths has become a problem that more and more teachers attach importance to. This group of articles published in this issue hopes to arouse the thinking of readers and friends to help us to further clarify our understanding so as to better enable all kinds of teaching media to make joint efforts to create synergies so as to obtain “1 + 1> 2” Teaching effect.