学校组织的多媒体教学大赛开始了,课前,我反复研读教材,根据教学要求和实际学情,精心地制作了“噪声与防治”的多媒体课件,本以为万无一失,一定能完美收场。上课时,我在“图文并茂”中循循善诱,在“声光交汇”中步步引导,时而激情讲评,时而静心指导,时而抑扬顿挫,时而热烈讨论, The multimedia teaching competition organized by the school began. Before the class, I studied the teaching materials repeatedly. According to the teaching requirements and the actual learning conditions, I carefully produced the multimedia courseware of “Noise and Prevention”. I thought it would be a perfect ending. In class, I follow the example of “good illustration” and guide it in “Sound and Light Meeting” step by step, sometimes passionate commentary, sometimes meditation, sometimes cadence, sometimes heated discussion,