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教材上的例题在学生的数学学习中有着重要的作用,所以,课程专家在编写教材时特别重视对教材中例题的选择和设计.教材上的例题具有多种功能,如示范引领、方法揭示、新知巩固、思维训练和文化育人等.这些功能往往都隐含于例题之中,需要教师深入研究发掘利用,它才能有效地发挥出来,进而最大效度地提高教学质量.笔者在研究并试图修订人教版必修①“3.2函数模型及其应用”的过程中,有几点不成熟的看法与思考,浅谈如下.1.降低一道例题的解答难度的研讨有观点认为,教材第97页的例2“解答繁长,计算量大,达不到使学生对不同增长的函数模型的体验”.
The examples in the textbook play an important role in the students’ math study, so the course specialists pay special attention to the choice and design of the examples in the textbook when they write the textbook.Examples of the textbook have many functions such as demonstration leading, method revealing, New knowledge consolidation, thinking training and cultural education, etc. These functions are often implicit in the examples, teachers need to explore and exploit it, it can effectively play out, and thus to maximize the validity of teaching quality.The author is studying and trying Revised PEP Edition compulsory ① “3.2 The function model and its application ” in the process, there are a few immature views and thinking, as follows .1 to reduce the difficulty of a solution to the problem of research that the textbook Example 2 on page 97 “The answer is lengthy, computationally intensive and does not meet the student’s experience of function models with different growth.”