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1、线性回归方程的教学设计（Theteachingdesignoflinearregressionequation）Teachingtarget(1)bycollectingthedataoftworelatedvariablesintherealproblem,thescatterdiagramismade,andthecorrelationbetweenvariablesisintuitivelyunderstoodbyscatterdiagram;(2)whenthetwovariableshavelinear
2、correlation,thelinearlinewillbelinearinthelongerscatterpointandwillbelinearbackRegressionequationsareusedtopredict;(3)knowthemeaningoftheleastsquaremethod,andknowtheideaofleastsquaremethod,canestablishlinearregressionequationaccordingtothelinearregressionequa
3、tioncoefficientformula,andunderstandthedefinitionof(linear)correlationcoefficientTeachingemphasisThedrawingofscatterdiagramandthemethodofsolvingtheequationofregressionlineTeachingdifficultiesThemethodofsolvingtheequationofregressionlineteachingprocessI.proble
4、msituation1.situation:Theobjectivethingsismostofthepaststudiesontherelationshipisacausalrelationship,butinfactthereweremoreofanoncausalrelationshipforexample:mathandphysicsachievementofcertainstudents,arelinkedtoeachother,butcannotthinkmathematicsisdue,physic
5、sisthe"fruit",orconverselyinfactmathematicsandphysicsachievementisthe"fruit",butthereal"cause"isthestudentslearningabilityandeffortsothatthefunctionalrelationshipexistsadeterministicrelationshipbutthereisalsoanothernondeterministicrelationshiprelationship2.qu
6、estion:Inordertofindouttherelationshipbetweenhotteasalesandtemperature,acanteenwasgivenarandomtableofthenumberofhotteasoldona6dayandthetemperatureoftheday:Temperature/CTwenty-sixEighteenThirteenTenFourThenumberofcupsTwentyTwenty-fourThirty-fourThirty-eightFif
7、tySixty-fourIfthetemperatureisoneday,canyoupredictthecupnumberofhotteasoldbythecanteenthisday?TwostudentactivitiesInordertounderstandthegeneralrelationshipbetweenteasalesandtemperature,wesaidthetemperatureintheabscissaandordinatesaidsalesoftea,theCartesiancoo
8、rdinatesystemwasestablished,thenumberoftablesintheformofrepresentationofthedatapointsmarkedinthecoordinatesysteminthefuture,wecallsuchagraphasascatterplot(scatterplot).Asyoucanseefromther
