11278.策略訓(xùn)練對小學(xué)生估算能力的影響研究

1、學(xué)位論文獨創(chuàng)性聲明本人鄭重聲明：所提交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進行的研究工作和取得的研究成果。本論文中除引文外，所有實驗、數(shù)據(jù)和有關(guān)材料均是真實的。本論文中除引文和致謝的內(nèi)容外，不包含其他人或其它機構(gòu)已經(jīng)發(fā)表或撰寫過的研究成果。其他同志對本研究所做的貢獻均已在論文中作了聲明并表示了謝意。學(xué)位論文作者簽名：烈，怕日期：馴輝呂目硼學(xué)位論文使用授權(quán)聲明研究生在校攻讀學(xué)位期間論文工作的知識產(chǎn)權(quán)單位屬南京師范大學(xué)。學(xué)校有權(quán)保存本學(xué)位論文的電子

2、和紙質(zhì)文檔，可以借閱或上網(wǎng)公布本學(xué)位論文的部分或全部內(nèi)容，可以采用影印、復(fù)印等手段保存、匯編本學(xué)位論文。學(xué)校可以向國家有關(guān)機關(guān)或機構(gòu)送交論文的電子和紙質(zhì)文檔，允許論文被查閱和借閱。(保密論文在解密后遵守此規(guī)定)保密論文注釋：本學(xué)位論文屬于保密論文，密級：——保密期限為年。學(xué)位論文作者簽名：剎、帕日期：加I蜘目刀目指導(dǎo)教師簽名：妻諺日期：如frf≯葛／唧IJ。?！疞，AbstractAbstractComputationalestimat

3、ionisakindofabilitythatiscommonlyusedinourdailylifeThetrainingofcomputationalestimationcanpromotechildren’SproperjudgmentofspacegeometryandbetterunderstandingtoquantitativerelationItalsocancontributestochildren’Soveralla

4、warenessandgeneralunderstandinginthecalculationormeasurementToselectappropriatestrategiesisakeyfactorincomputationalestimationTherefore，thestudyofelementaryestimationstrategychoicehasimportantresearchsignificanceAccordin

5、gtothedevelopmenttheoryofcomputationalestimation(Case&Sowder1990)，strategychoicesmodetheory(Siegler1996，1998，2002)，thecontentincomputationalestimation(Sowder&Wheeler1989)masterofthedifferentpartofknowledge(Dowker2002)，an

6、dthegeneralframeworkofchildren’ScognitivestrategiespromotedbyLemaireandSieglerWeanalyzedtheeffectofshorttermtrainingofstrategyguideoncomputationalestimationinchildrengraded5Mainlydiscussedtheeffectontheestimatingresults(

7、accuracy，reactiontime)andstrategychoices(numberofstrategiesthebeststrategyhitrate)offourdifferenttypeofproblemThestudyconsistedofthreepartsThefirstresearchanalyzedchildren’Sexistingestimatesabilitybyexaminingtheirestimat

8、ingaccuracyandreactiontimeandstrategychoicesinfourdifferentproblemsThesecondresearchwasgoingtoexploretheeffectsonstrategychoices(thedevelopmentofnumberofstrategiesandbeststrategyhitrate)intwoconditions：strategicdirection

9、sandnostrategicdirectionsThethirdresearchwasgoingtoexplorewhetherstrategicdirectionscandevelopchildren’Sestimationabilitiesbyexaminingshorttimestrategicdirections’effectonestimationaccuracyTheresultofthestudyshowed：(1)Th

10、echildrengradefivealreadyhadtheestimationabilities，anditwasaffectedbycalculationformandnumerictypesIngeneral，children’Sintegerestimationabilitiesbetterthandecimalestimationabilities，additionandsubtractionestimationabilit

11、iesbetterthanmultiplicativeanddivisionestimationabilities(2)Children’SstrategychoiceswasaffectedbycalculationformandnumerictypesChildrentendedtouseavarietyofstrategiestosolvethesametypeproblemofestimation，andchosecomputa