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Otero, Daniel E. 2019. Completing the Square: From the Roots of Algebra, A Mini-Primary Source Project for Students of Algebra and Their Teachers. Convergence 16 (September). DOI:10.4169/convergence20190901.
The author wishes to thank the Convergence editorial board and anonymous reviewers for their helpful comments on earlier drafts.
Günhan Caglayan (MR Author ID: 1116420) teaches mathematics at New Jersey City University. His main interests are mathematical visualization and student learning through modeling and visualization.