“最没把握的是简算”原因何在

• 作 者: 刘涛 雷建新
• 机 构: 甘肃省陇西县实验小学,
• 出 处: 中小学数学(小学版)
• 发表日期: 2014年06期
• 关键词: 期中考试 渐行渐远 乘法分配律 计算思路 竖式 满带 运算律 数据特征 运算性质 区别对待

最近给四年级的一个班顶替上课,班上几名数学学得相对好些的学生来到办公室要我给他们讲题。因为快期中考试了,讲完题目后我鼓励他们要认真答卷,努力考个高分,争取考100,并问他们有没有信心,学生迟疑。我又问还有哪儿不太懂,他们还是不吭声。见学生似乎有难处,我又换了个方式问到:“最没把握的是什么?”他们异口同声回答说:“简算。”我又问“没学会?”学生摇头,“老师没讲清楚?”学生还是摇头。我有些奇怪了,这也不是,那也不是,到底是什么

Recently, a class in the fourth grade was replaced by class. Several students in the class who had relatively better maths came to the office and asked me to give them a topic. Because of the mid-term examinations, after completing the topics, I encouraged them to be careful in answering questions, trying hard to get high marks, taking 100 marks, and asking them if they had any confidence and the students hesitated. I asked where else do not understand, they still do not say anything. See the students seem to have difficulties, I asked another way: “What is the most unsure?” They said in unison: “Jane count. ” I asked “The teacher did not make it clear? ” Students still shook his head. I am a little strange, this is not, that is not, in the end is what