PureMathematics理论数学,2023,13(10),3007-3012PublishedOnlineOctober2023inHans.https://www.hanspub.org/journal/pmhttps://doi.org/10.12677/pm.2023.1310310文章引用:王亚丹.关于三角形等周问题的讲授思路研究[J].理论数学,2023,13(10):3007-3012.DOI:10.12677/pm.2023.1310310关于三角形等周问题的讲授思路研究王亚丹新疆师范大学数学科学学院,新疆乌鲁木齐收稿日期:2023年9月19日;录用日期:2023年10月20日;发布日期:2023年10月30日摘要三角形等周问题是非常古老的问题,在维吉尔的史诗《埃涅阿斯纪》中就出现了等周问题的影子。三角形等周问题是中学中经常用到的知识点,在一些中考,高考中会涉及三角形等周问题的变式。三角形等周问题的本质就是最值问题,但是大多数学生只知道这个知识点的结论,没有掌握其思想,这对于学生在面对一些相关变式题时会无从下手。本文基于这个问题,进行教学设计,对三角形等周问题这个知识点的进行详细证明,旨在让学生“知其所以然”,激发学生的好奇心。关键词三角形等周问题ResearchonTeachingIdeasaboutTriangularIsoperimetricProblemsYadanWangSchoolofMathematicalSciences,XinjiangNormalUniversity,UrumqiXinjiangReceived:Sep.19th,2023;accepted:Oct.20th,2023;published:Oct.30th,2023AbstractThetriangleisoperimetricproblemisaveryoldproblem.Theshadowoftheisoperipheralprob-lemappearsinVirgil’sepic“Aeneid”,andthetriangleisthesimplestoftheisoperipheralprob-lems.Theproblemoftriangleisosperimeterisaknowledgepointoftenusedinmiddleschools.Insomehighschoolentranceexaminationsandcollegeentranceexaminations,variationsoftheproblemoftriangleisosperimeterwillbeinvolved.Theessenceofthetriangleisosperimeterproblemistheoptimalvalueproblem,butmoststudentsonlyknowtheconclusionofthisknow-ledgepointanddonotgraspitsideas.Thismakesitdifficultforstudentstostartwhenfacingsomerelatedvariantquestions.Basedonthisproblem,thisarticlecarriesoutteachingdesignand王亚丹DOI:10.12677/pm.2023.13103103008理论数学providesdetailedproofoftheknowledgepointofthetriangleisosperimeterproblem,aimingtoletstudents“knowwhy”andstimulatestudents’curiosity.KeywordsTriangularIsoperimetricProblemCopyright©2023byauthor(s)andHansPublishersInc.Thi...