Hawthorne, Casey, Charles Michael, and Mikayla Miley. “The Failure of Diagrams on Standardized Testing to Assess Students’ Understanding: What Teachers Need to Know to Use Diagrams Appropriately”. Ohio Journal of School Mathematics 87, no. 1 (February 19, 2021). Accessed April 30, 2024. https://ohiomathjournal.org/index.php/OJSM/article/view/8025.