黑土地是大自然赐予人类得天独厚的宝藏,是一种性状好、肥力高、非常适合植物生长的土壤。全世界仅有三大块黑土区,分别是乌克兰大平原、北美洲密西西比河流域和中国东北平原。由此可见,黑土地是极其珍贵的,需要多加保护与利用。于教育而言,教师却正在荒废一块价值不菲的“黑土地”——黑板。多媒体的情境性、电子白板的互动性、网络教室的便利性和电脑投影的直观性等特点,使信息技术成 Black earth is a unique gift of nature to mankind, is a good trait, high fertility, very suitable for plant growth in soil. There are only three major black areas in the world, namely the Great Plains of Ukraine, the Mississippi River Basin in North America and the Northeast China Plain. This shows that black land is extremely valuable and needs more protection and utilization. For education, teachers are deserting a valuable “black land” - blackboard. Multimedia situation, the interactive whiteboard, the convenience of online classrooms and intuitive computer projection and other characteristics of the information technology into