重视数学课堂导入的有效性

Place Great Emphasis on the Validity of lead-in of Mathematics Class

本文结合数学新课标的要求,通过对几则数学课堂低效导入案例的分析,提出了数学课堂有效导入必须遵循愉悦性、目的性、主体性原则,并着重探讨了数学课堂有效导入的策略:创设趣味型问题情境,让学生在愉悦中参与新课学习;凸现教学主线,让学生围绕学习目标进入新课学习;创设最近发展区,让学生在积极思维中走进新课学习.

Based on the new standard of mathematic course and analysis of several inefficient cases of lead-in of mathematics class, the paper puts forth efficient lead-in methods which adhere to the mandatory principle of joviality, purposiveness and entity, and discusses the strategy of efficient lead-in of mathematics class. Firstly, students are asked interested questions, so they will have a good study environment. Secondly, centering on teaching makes students study new lessons surrounding learning target. Thirdly, applying the Zone of Proximal Development theory lead students to learn new lessons with positive thought.