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思考起于问题,学习源于情境。创设有效的问题情境,能让学生能积极参与其中,激发学生自主探究的欲望,引导学生深入参与数学活动,引燃学生思维的火花。在课始创设有效的问题情境,能引发学生的好奇心,激起学习的兴趣;在课中创设有效的问题情境,能引发学生的思考,激起深层的互动;在课尾创设有效的问题情境,能引发学生的期待,激起再研究的热情。下面笔者就以《字母表示数》一课的教学为例,谈谈创设有效的问题情境一些做法。
Thinking from the problem, learning from the situation. Creating effective problem situations can enable students to actively participate in them, stimulate students ’desire to explore themselves, and guide students to participate in mathematics activities in depth, igniting the spark of students’ thinking. Creating effective problem situations at the beginning of class can trigger students ’curiosity and arouse interest in learning. Creating effective problem situations in class can trigger students’ thinking and stimulate deep interaction. Creating effective problems at the end of classes Situations can arouse students’ expectations and arouse enthusiasm for further research. The following author on the “number of letters,” a class of teaching, for example, talk about some of the ways to create effective problem situations.