根据北京教科院范存丽老师的研究,小学数学教学过程中问题情境创设的目的,就是借助情境创设拉近学生与所学数学知识之间的距离,激发学生对相关数学知识产生需要以及成功解决的渴望,使学生的生活经验与数学学习对接,以简化学生的数学学习。而反观我们传统的计算教学,虽然这一教学内容很重要,占比也很大,但由于教学内容较为单一,教师多在算理讲解之后,直接将大量的教学时间用于学生机械而繁杂的计算练习,时日一久,多会使学生产生枯燥无味之感,难有诱惑之心,即使对教师本身来说亦多有此感而懈怠。因而,在数学新课程标准“减少单纯的技能性训练,避免繁杂计算,避免将运算与应用割裂开 According to the research by Fan Cunli from Beijing Academy of Education, the purpose of problem situation creation in elementary mathematics teaching is to create the distance between students and mathematics knowledge by means of context creation to stimulate students’ desire for relevant mathematical knowledge and the desire for successful solution , So that students experience life and mathematics learning docking, in order to simplify students’ math learning. In contrast, our traditional teaching of computation, although this teaching content is very important, accounting for a great deal, but because the teaching content is more single, the teacher mostly in the arithmetic to explain, directly to a large number of teaching time for student machinery and complicated Computational exercises, over time, will make students feel boring, difficult to seduce, even for the teacher itself, there is more sense of this slack. Thus, in the new mathematics curriculum standard ”to reduce purely skill training, to avoid complicated calculations, to avoid the operation and application of split