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低年级数学教学中,合理地运用各种花样,比如打比方、智慧果、关键词等,能达到意想不到的效果。在这方面,我做了一些尝试。一、妙用打比方,让思维活起来案例回放:数学对于低年级的学生来说可能有些无趣,特别是有些算理对学生来说更是如此,打比方就可以拉近学生与数学之间的距离,让学生感受到数学的亲切。比如:在教学两位数减两位数的退位减时,学生往往会忘记退位,造成计算错误,为此我设计了这样的环节:师:用竖式计算45-28,该怎么算呢?生1:先算个位。生2:个位不够减。师:不够减,该怎么办呢?想想看,如果你们带的铅笔不够了,你会怎么办呢?
Lower mathematics teaching, the rational use of a variety of patterns, such as playing analogy, wisdom fruit, keywords, etc., can achieve unexpected results. In this regard, I made some attempts. First, the magical use of analogy, so that the thinking of life Case playback: Mathematics for the lower grades of students may be somewhat boring, especially some of the arithmetic is even more so for students, for example, can be closer between students and mathematics Distance, so that students feel the kind of mathematics. For example: In the teaching of double-digit double-digit teaching to reduce the abatement, students tend to forget to abdicate, resulting in calculation error, for which I designed this link: Teacher: 45-28 with the vertical calculation, how to count? Students 1: first count a bit. Health 2: a bit less than minus. Teacher: Not enough reduction, what to do? Think about it, if you have not enough pencil, what would you do?