线段图能使抽象的数量关系具体化、直观化,无疑是解题的“好帮手”。尽管广大数学教师都十分重视线段图在应用题教学中的重要作用,但是有些教师在教学过程中,停留在“师画生看”的阶段,教师借助线段图帮助学生理解应用题的数量关系,列式解答,学生亦频频点头,教学效果似乎不错。然而当教师要求学生借助线段图解答稍复杂的应用题时,他们却抓耳搔腮,无从下手。为什么教学效果不佳呢?究其原因,是教师没有充分认识并重视线段图的教学,忽略了线段图的形 Line graph can abstract the relationship between the number of specific, intuitive, is undoubtedly the solution “good helper.” Although most math teachers attach great importance to the important role of the line drawing in the teaching of applied subject, some teachers remain in the stage of “teacher drawing and painting” in the process of teaching. The teacher helps the students to understand the quantitative relationship of the applied questions through the line drawing, Column solution, students also nodded frequently, the teaching effect seems good. However, when teachers asked students to use line graphs to answer slightly complicated application questions, they scratched their ears and could not start. Why poor teaching effect? ​​The reason is that teachers do not fully understand and pay attention to the teaching of line drawings, ignoring the shape of line drawings