AUTHOR=Kyaruzi Florence , Strijbos Jan-Willem , Ufer Stefan TITLE=Corrigendum: Impact of a Short-Term Professional Development Teacher Training on Students’ Perceptions and Use of Errors in Mathematics Learning JOURNAL=Frontiers in Education VOLUME=5 YEAR=2021 URL=https://www.frontiersin.org/journals/education/articles/10.3389/feduc.2020.634597 DOI=10.3389/feduc.2020.634597 ISSN=2504-284X