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一、两个案例案例1指数函数指数函数是学生进入高中后学习的第一种函数,它的引入是否自然、流畅?定义中的规定是否合理?这些都直接影响到学生对知识的理解,关系到学生学习新知识的积极性.几种高一数学教材在导入指数函数时,都是用实际事例来创设情境.例如,苏教版教材举出两个例子后,得到:(1)细胞分裂x次后的个数y=2~x,x∈N~*;
First, the two cases Case 1 Exponential function Exponential function is the first function after students enter high school, whether it is natural and smooth to introduce? Are the definitions in the definition reasonable? All these have a direct impact on students’ understanding of knowledge, the relationship To the students the enthusiasm to learn new knowledge.A few high mathematics textbooks in the introduction of exponential function, are used to create the actual situation scenarios.For example, the Supra textbook cites two examples, we get: (1) cell division x After the number of y = 2 ~ x, x∈N ~ *;