Moyer TO, Krach RM. Formulas! Formulas! Everywhere! A few activities to introduce area. ojsm [Internet]. 2022 Sep. 23 [cited 2026 Apr. 30];92(1):13-26. Available from: https://www.osu.tests.sfulib4.publicknowledgeproject.org/index.php/OJSM/article/view/9071