{"title":"Two prospective middle school teachers reinvent combinatorial formulas: permutations and arrangements","authors":"Joseph Antonides, M. Battista","doi":"10.51272/PMENA.42.2020-177","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":68089,"journal":{"name":"数学教学通讯","volume":"4 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"数学教学通讯","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.51272/PMENA.42.2020-177","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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