在基础教育课程改革中,出现了一个新的事物——教学案例.虽然案例在其他领域早有出现,对中小学教师来说,还是颇有新鲜之感.教学案例一出现,就被广大教师愉快地接受.目前,在实施新课程的过程中,人们也十分提倡开发教学案例,运用教学案例,并把开发和运用教学案例作为培养教师的一种重要方式.作为数学教师同样能够开发出优秀的教学案例,使教学案例给教学带来实际的效益. In the basic education curriculum reform, a new thing has emerged—teaching cases. Although cases have emerged in other fields, teachers in primary and secondary schools still have a sense of freshness. When teaching cases emerged, they were taught by teachers. Pleasantly accepted. At present, in the implementation of the new curriculum, people are also very much advocating the development of teaching cases, the use of teaching cases, and the development and use of teaching cases as an important way to train teachers. As a math teacher can also develop excellent The teaching cases make the teaching cases bring practical benefits to the teaching.