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在中考复习阶段,学生经常会出现“平时测试成绩很好,综合考试却不行”、“考试时一筹莫展,考试后恍然大悟”等现象,这些已经成为制约学生中考正常发挥的瓶颈.如何解决这个问题呢?下面结合自己的教学实践谈点体会.一、认识数学思想数学思想方法是数学的生命和灵魂,是数学知识的精髓,是把知识转化成能力的桥梁.我喜欢向学生讲身边、生活中的事例,如不小心把麦子和豆子混合在一起了,如何将它们重新分开?一般有两个方案:一是拣豆子,由于豆子颗粒较大,可通过逐个“拣”的方法,把它们分开来;二是筛麦子,即选择一个筛孔大小恰
In the exam review phase, students often appear “normal test scores are good, the comprehensive test is not ”, “the test did not do anything, the test suddenly realized ” and so on, these have become the bottleneck restricting the students in the normal test. To solve this problem? The following combination of their own teaching practice talk about experience. First, the understanding of mathematical thinking Mathematical thinking and method is the life and soul of mathematics, is the essence of mathematical knowledge, knowledge is transformed into a bridge of ability. Around, in life, such as accidentally mixed with wheat and beans, and how to separate them? There are two general programs: First, pick beans, because beans larger particles, one by one, “pick” The way to separate them; Second, sieve wheat, that is, choose a sieve size exactly