摘要
读图是初等函数教学的关键突破点,应从学生的认知水平、认知能力、认知规律探索其教法与学法的合一,通过教师读图示范,学生读图练习,在函数图像认知中加深对函数的单调性、极值、零值、正值、负值、对称性、定义域、值域等性质的理解,从而解决相关联的数学问题。把数学教学静态分析与动态分析相结合,把数学显性层面与隐性层面相结合,将函数定式与变式相统一,从而达到教学策略的灵动以完成函数读图突破。
Drawing reading is one of key breakthrough points in elementary function. The relevant mathematic problems can be solved by means of teachers＇ demonstration, students＇ practice so as to strengthen their understanding of the monotonicity, extreme value, zero value, positive value, negative value, symmetry, domain of definition, range and so on based on the combination with students＇ cognitive level, ability and rule and the methodology of learning and teaching. In order to get flexibility of teaching strategy to complete the teaching breakthrough of drawing reading, combining static analysis with dynamic analysis, explicit teaching with implicit teaching and function pattern with non-function pattern can be done.
出处
《铜仁学院学报》
2013年第6期169-171,共3页
Journal of Tongren University
关键词
教学读图
初等函数
教学策略
drawing reading of teaching, elementary function, teaching strategy
