Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleTHE ABACUS FROM 2007 TO 2021.AuthorsKESTELL, MARYLOUSubjectsMATHEMATICS education; TEACHERSPublicationOntario Mathematics Gazette, 2022, Vol 60, Issue 3, p75ISSN0030-3011Publication typeArticle