小学数学“一题一课”教学策略探讨
2021-08-06苏浙闽
苏浙闽
【摘 要】通过实际教学经验总结了解到,小学生在学习知识的时候呈现出了点状化、碎片化等特性,同时思维也不完整。要想有效解决这些问题,笔者假设在课堂上实施“一题一课”,即教师从一个题目出发,遵照学情设计探究课,从而带领学生深挖数学,尽可能做到“解一题,学一法,会一类”,实现学生的自主、持续性发展。本文探究的就是“一题一课”模式教学的有效策略。
【关键词】小学数学;一题一课;教学策略
中图分类号:G623.5 文献标识码:A 文章编号:0493-2099(2021)18-0085-02
【Abstract】Through the summary of practical teaching experience, it is found that primary school students show the characteristics of dot-shaped, fragmented and so on when learning knowledge, and at the same time, their thinking is not complete. In order to solve these problems effectively, the author assumes that “one problem and one lesson” should be implemented in the classroom, that is, teachers design inquiry courses from one topic to follow the learning situation, so as to lead students to dig deep into mathematics and try to “solve one problem, learn one method, and meet one kind” so as to realize students' independent and sustainable development. This paper explores the effective strategies of “one question and one lesson” mode teaching.
【Keywords】Primary Mathematics; One problem one lesson; Teaching strategy
如何才能够提升课堂成效呢?这是每一位一线教师和学者一直思考和探究的问题,也因此提出了许多新方法。在此,笔者提出“一题一课”模式应用在小学数学课堂,以期为教学模式改革提供一点参考性建议。
一、改掉学生“小题大做”,以“一题一课”提升课堂成效
“培养教育人和种花木一样,首先要认识花木的特点,区别不同情况给以施肥、浇水和培养教育。”陶行知先生的这段话强调了对症下药。当前了解到小学生很容易出现算理的错误,“小题大做”,影响课堂教学成效。对此,教师可以采用“一题一课”形式,对一道题目从具体数字到换数字,再到推理和分析,最后形成一个模型,学生在说理的过程中经历整个思维过程,自主发现其中的道理,解决难点问题。
比如人教版小学数学四年级“除数是两位数的除法”,因为学生屡做屡错,由此设计了一题:92÷30进行自主探究。要求学生先进行估算,估一估,看结果是多少。……