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高中新课程实验教科书(数学·苏教版)与原教材相比有很多突出的优点,其中之一就是在练习中强化了层次性、突出了开放性和探索性.教材既是学生掌握知识和学习方法的主要依据,又是培养学生能力的载体.在新课程标准下,教师不仅更要深入挖掘教材的潜在价值,还需要更加重视教材内容的探索性、启发性、开放性和情感教育性价值.下面就一道习题潜在价值的探索,谈谈笔者的做法.(苏教版数学(必修1)第33页,第13题)已知函数解析式为y=x2,值域为[1,4],问这样的函数有多少个?试举出两个例子.
High school new curriculum experimental textbook (Mathematics · Sujiao Edition) compared with the original textbooks have many outstanding advantages, one of which is to strengthen the level of practice, highlighting the openness and exploration of textbooks is both students knowledge and learning The main basis of the method and the carrier of cultivating students’ abilities.Under the new curriculum standards, teachers not only need to dig deeper into the potential value of teaching materials, but also pay more attention to the exploratory, enlightening, open and emotional educational value of teaching materials The following is an exploration of the potential value of the exercise, talk about the author’s practice (Sujiao Edition Mathematics (Compulsory 1) Page 33, No. 13) known function analytic formula for y = x2, the range [1,4 ], Ask how many such a function? Cite two examples.