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Agreeing to Disagree: Developing Sociable Mathematical Discourse MAGDALENE LAMPERT PEGGY RITTENHOUSE src=https:reader034vdocumentinreader034viewer20220502135f5f1a957743b002e968b608html5thumbnails10jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 11button div class=ts-image amp-img class=ts-thumb alt=Page 11: U-M Personal World Wide Web Servermlampertlampert pdfsLampert_etal_199… · Agreeing to Disagree: Developing Sociable Mathematical Discourse MAGDALENE LAMPERT PEGGY RITTENHOUSE src=https:reader034vdocumentinreader034viewer20220502135f5f1a957743b002e968b608html5thumbnails11jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 12button div class=ts-image amp-img class=ts-thumb alt=Page 12: U-M Personal World Wide Web Servermlampertlampert pdfsLampert_etal_199… · Agreeing to Disagree: Developing Sociable Mathematical Discourse MAGDALENE LAMPERT PEGGY RITTENHOUSE 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