精彩的导课像钥匙,悄然开启学生的思维,像桥梁,联系着旧知和新知。在一节课的开头就巧妙地导入,定好基调,能拨动学生的“情”弦,形成未成曲调先有情的良好教学效果。 Wonderful lesson-oriented key, quietly open the student’s thinking, like a bridge, with the old knowledge and new knowledge. In the beginning of a class on the introduction of cleverly, set a good tone, can dial the students “love ” string, the formation of a melodious tune good teaching effect.