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有一种常见的错误叫“粗心”错误,这种错误在数学中尤为常见。大部分老师、家长还有学生自己本人,都会觉得这不过是不小心的错误而已,没什么大不了,只要掌握知识点,会做题目就够了。事实上,这种“粗心”错误最不应该,也最让人痛心疾首。避免这种错误的方法也比较简单,就是检查。笔者曾对四年级某班上学生做了一个有关数学作业检查情况的小调查。调查显示:有81%的同学认为做完题后检查很重要;但只有9.3%的同学做完题后会自觉检查验算;只有19.1%的同学能说出2
There is a common mistake called “carelessness ” error, which is especially common in mathematics. Most teachers, parents and students themselves, will think this is just a mistake, it is no big deal, as long as the knowledge points, will do the topic enough. In fact, this “careless ” error should be the most should not be the most painful. The way to avoid this error is relatively simple, is to check. The author once made a small survey of the fourth grade students in a class about the math homework examinations. Survey shows: 81% of students think it is very important to do the exam after the exam; but only 9.3% of the students will check the exam after they finish the exam; Only 19.1% of the students can say 2