CAJ | 학술논문

我们都知道定义域、值域、对应法则为函数的三要素，其中起决定性作用的是定义域和值域，定义域和对应法则共同确定了值域。由于求函数值域所涉及的知识面非常广，方法也灵活多变，常常让学生倍感头疼，而且在高考中也经常出现，如果学生能够灵活的运用方法，必然能起到避繁就简，事半功倍的作用。基于此，本文笔者就高中数学教学中求函数值域的方法浅谈一下。
아문도지도정의역、치역、대응법칙위함수적삼요소，기중기결정성작용적시정의역화치역，정의역화대응법칙공동학정료치역。유우구함수치역소섭급적지식면비상엄，방법야령활다변，상상양학생배감두동，이차재고고중야경상출현，여과학생능구령활적운용방법，필연능기도피번취간，사반공배적작용。기우차，본문필자취고중수학교학중구함수치역적방법천담일하。
We all know the domain, range, corresponding to rule, as a function of three elements, which play a decisive role in the domain and range, domain and the corresponding principles to determine the range. Due to the range of functions covered a very wide range of knowledge, methods are also flexible, often makes students feel more headaches, and often appear in the entrance examination, students the flexibility of using methods can certainly afford to avoid it simplify, multiplier effects. Based on this, the author talks about high school mathematics teaching method for range of functions.