两位未来的中学教师重新发明了组合公式:排列和安排

{"title":"两位未来的中学教师重新发明了组合公式:排列和安排","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":"{\"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}","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}