日臻成熟的多媒体辅助教学因其声画并茂、直观形象,受到了中小学广大师生的欢迎。教学中适时、恰当地运用多媒体可充分调动学生的多种感官参与学习,使学习成为多媒体参与下的情境感悟活动。在大力推进新课程改革的今天,这种情境式学习活动可改变“一块黑板一支笔,一张地图一星期”的单一教学模式,优化地理课堂教学。一、缘虚求实,虚实相生,还以本原地理教学内容中一些抽象的描述性知识距离学生生活实际较远,其感性认识少,理解与掌握这种“虚”的知识有一定困难。如果仅仅通过语言来叙述讲解,尽管这种讲解多么生动、叙述多么详尽,所收到的效果也是暂时 The mature multimedia-assisted teaching has been welcomed by the teachers and students of primary and secondary schools because of its pleasing and intuitive image. The timely and proper use of multimedia in teaching can fully mobilize students’ multiple senses to participate in learning, making learning a contextual awareness exercise under multimedia participation. Today, with vigorously advancing new curriculum reforms, this situational learning activity can change the single teaching mode of “a blackboard, a pen, a map, and a week” and optimize the teaching of geography classes. First, the edge is fictitious and realistic, and the reality and reality are different. In addition, some of the abstract descriptive knowledge in the original geography teaching content is far from the student’s life. It has less perceptual knowledge, and it is difficult to understand and master this “virtual” knowledge. If only the language is used to narrate the explanations, despite the vividness and detailedness of the narration, the effect received is also temporary.