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Name:_____________________________ FibonacciSequenceandFractalSpirals 1.First,we’regoingtofigureouttheFibonaccisequence.Fillouttheblanksbelow: 0+1=______ 1+______=______ ______+______=______ ______+______=______ ______+______=______ ______+______=______ ______+______=______ ______+______=______ 2.Listeachnumberaftertheequalsign:112______________________________ 3.Now,squareeachnumber:114_______________________________ 4.Addtwoadjacentnumbersfromthelistabovetogether. 1+1=_____1+4=_____4+_____=__________+_____=_____ Whatpatterndoyousee?Circlethosenumberswhereyou’veseenthembefore! 5.Howaboutwhenyouaddthesquarednumbers(from#3)sequentially? 114_________________ 1+1+4=_____thenaddthenextnumberinthesequencetothat _____+_____=______+______=______+______=______ 6.Listthenumbersfromaboveaftereachequalsign(=):________________________ FibonacciSequenceandFractalSpirals 7.Howiseachnumberlistedin#6expressedasamultiplicationofnumbersinthe Fibonaccisequence,listedafter#2? yourfirstnumber______=_____x______yoursecondnumber______=______x______ yourthirdnumber_____=______x______yourfourthnumber______=______x______ Anotherfunandmind-blowingfact… 8.GoingbacktotheoriginalFibonaccisequence,dividethelargernumberbytheprevious smallernumberandlet’sseewhatweget.Theoriginalsequence(#2)is: 112___________________________________ andsoon… 1÷1=_____2÷1=__________÷2=___________÷_____=___________÷_____=______ ______÷_____=____________÷______=____________÷______=____________÷______=______ Goldenratio=1.618033… 9.Let’sdosomegraphingtoseemoreabouthowthisworks! a.WhatisthefirstnumberoftheFibonaccisequence?______ Onthegraphpaperattheendofthishandout,thereissquarethatis1x1. b.What’sthesecondnumberoftheFibonaccisequence?_______ Rightabovethesquareyoujustdrew,drawanother1x1square. c.What’sthesecondnumberintheFibonaccisequence?______ Directlytotheleftofthetwoexistingsquares,drawina2x2square. d.What’sthenextnumberintheFibonaccisequence?______ Rightbelowyourexistingsquares,drawa_____x_____square. e.What’sthenextnumberintheFibonaccisequence?______ Totherightofallthatyou’vedrawn,drawa_____x_____square. FractalsareSMART:Science,Math&Art! www.FractalFoundation.org Copyright2015FractalFoundation,allrightsreserved 2 FibonacciSequenceandFractalSpirals f.What’sthenextnumberintheFibonaccisequence?______ Aboveallthatyou’vedrawn,drawa_____x_____square. g.What’sthenextnumber?______ Totheleftofallthatyou’vedrawn,drawa_____x_____square. h.What’sthenextnumber?______ Belowallthatyou’vedrawn,drawa_____x_____square. …Totherightofthatwouldbethenextsquare,butwe’verunoutofroom. 10.Nowlet’sseehowwecanmakeapatternoutofthesesquares. Intheoriginalsquare,drawalinefromthebottomlefttothetopright. Onthenext1x1square,continuethatlineacrossyoursquare,fromthebottomrighttothe topleft. Crossthe2x2squarefromthetoprighttobottomleft. Crossthe3x3squarefromthetoplefttobottomright. Crossthe5x5squarefrombottomlefttotopright. Crossthe8x8squarefrombottomrighttotopleft. Continuethelineacrossthe13x13squareandthe21x21square,wrappingupwitha linethatwouldgothroughthe34x34square. 11.Whatpatterndoyouget? 12.Wheredowefindspiralsnaturally? 13.Countthenumberofthingsthatmakeupaspiralonapineappleorapineconeorthe numberofpetalsonaflowerornumberofspiralsonafroccoliorseedsofasunflower. TheyalloccurinFibonaccinumbers!Natureisfullofmathematicalpatterns!Amazing, huh?Seewhatothercoolpatternsyoucanfigureoutinnature. FractalsareSMART:Science,Math&Art! www.FractalFoundation.org Copyright2015FractalFoundation,allrightsreserved 3 FibonacciSequenceandFractalSpirals FractalsareSMART:Science,Math&Art! www.FractalFoundation.org Copyright2015FractalFoundation,allrightsreserved 4