新课程改革的不断深入,教师对新课程所倡导的理念也不断加强。但教师运用理念指导教学收到的效果差强人意,其中一个重要的原因就在于课堂问题设计的低效。因此,在教学中设计一条高效的,能“牵一发而动全身”的教学主线显得非常必要,它能串联各个环节上的主要问题,使作者、编者和学生和谐统一,收到事半功倍的教学效果。 The deepening of the new curriculum reform, teachers advocated the concept of the new curriculum has also been continuously strengthened. However, one of the important reasons why teachers use the concept-guided teaching to receive unsatisfactory results lies in the inefficiency of classroom design. Therefore, it is very necessary to design an effective teaching mainline that can “lead one body and move the whole body” in teaching. It can connect the main problems in all aspects and make the author, editor and student unify and receive more with less. The teaching effect.