“导入”是联系“旧知”与“新知”之间的“桥梁”。从认知理论看 ,所有“新知”都必须融入于学生的“旧知”的“图式”之中 ,方能被接受。这以“旧”纳“新”的“入口”在何方 ?这不能不仰仗于教师的“导入”艺术了。“导入”还有一锤定音的作用。教师“开讲”的创意 ,往往能 “Import” is the “bridge” between “old knowledge” and “new knowledge.” From the cognitive theory, all “new knowledge” must be integrated into the “old” “schema” of the students to be accepted. Where is the “entrance” to “new” “old”? It can not but rely on the teacher’s “introduction” art. “Import” there is a final effect. Teachers “talk” creative, often can