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1设计说明1.1学情分析(1)学生知识薄弱、技能欠缺,对函数概念理解不全面,不深刻,不善于结合具体情境建立函数模型,容易忽视实际情境中自变量取值范围;对函数图像性质理解肤浅,特别是图像增减性和对称性方面;不能准确作出函数图像;不会提取信息;对待定系数法的本质认识不深刻,计算不过关;数形结合思想、函数方程思想、转化与化归意识不强。(2)思考缺乏目的性和条理性,对函数综合问题或新情境问题无从下手。(3)意志品质不够坚强,面对困难,缺少知难而进的勇气。
1 Design Description 1.1 Analysis of academic situation (1) students knowledge is weak, lack of skills, the concept of the function is not comprehensive understanding, not profound, not good at combining the specific situation to establish a function model, easy to ignore the value of the arguments in the actual context; The nature of the understanding of superficial, especially the image increase and decrease of the symmetry; can not accurately make the function of the image; does not extract information; the nature of undetermined undetermined cognition of fixed coefficient method, With the return of consciousness is not strong. (2) thinking lack of purpose and reasoning, the comprehensive function of the problem or new situation can not start. (3) the will of the character is not strong enough, in the face of difficulties, lack of courage to make progress.