AUTHOR=Thurm Daniel TITLE=The quality of mathematical explanation videos: a quantitative cross-topic analysis JOURNAL=Frontiers in Education VOLUME=Volume 10 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/education/articles/10.3389/feduc.2025.1509019 DOI=10.3389/feduc.2025.1509019 ISSN=2504-284X