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如今,数学教师大都能根据学生课堂学习的需要设计出与学生生活背景相关的新颖有趣的情境,但不少情境创设不细致,不自然,显的粗糙或牵强。在数学课堂教学中不注重低代价和高效性,导致了实际的教学中常会出现情景的创设光有形式,甚至是毫无意义的人为设定,不仅没有起到好的作用,反而整个课堂的效果深受影响,现择摘两例如下:案例一:在讲解“倒数”时某教师做了设计,教师引导:“杯子可以倒过来,数可以倒过来吗?”“上海自来水来自
Nowadays, most math teachers can design novel and interesting situations related to students ’living backgrounds according to the needs of students’ classroom learning. However, in many situations, they are not meticulous, unnatural, explicit or far-fetched. In the mathematics classroom teaching, it does not pay attention to the low price and the high efficiency, which leads to the fact that the teaching often appears in the teaching of the creation of a light form, or even meaningless artificial setting, not only did not play a good role, but the entire class Effect is deeply affected, now pick two cases as follows: Case 1: In explaining the ”countdown“ when a teacher made the design, the teacher guides: ”Cup can be reversed, the number can be reversed?“ ”" Shanghai Tap water comes from