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一、问题的缘起变式练习的教学当下已然成为倍受关注的一种教学方法,它是指在新课改理念的指导下,以情感、态度和价值观的三维目标为导向,有目的、有计划地在数学概念的教学中不断变换数学概念中的非本质特征,加强学生透过现象看清事物本质的能力。教师通过变式练习把规律性的问题联系在一起,不仅对题型做出归纳总结,也对解题方法进行了筛选归类。避免盲目的“题海”战术,使学生乐学、勤学、善学,在为学生减负的同时也能够真正提高课堂教学的有效性。
First, the origin of the problem Variants practice teaching now has become a much-watched method of teaching, it refers to the new curriculum reform under the guidance of the concept of emotion, attitude and values of the three-dimensional goal-oriented, there are Planned to constantly change the non-essential characteristics of mathematical concepts in the teaching of mathematical concepts to enhance students’ ability to see the essence of things through phenomena. Teachers through the practice of variables to the regularity of the problem together, not only to sum up the question summary, but also the problem-solving methods were classified. Avoid blind “question the sea ” tactics, so that students learn music, diligence, good learning, while reducing the burden on students can also really improve the effectiveness of classroom teaching.