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A Case Study on Learning Proofs of the Pythagorean Theorem ..:

Noh, Jeong-Won ; Lee, Kyeong-Hwa ; Moon, Sung-Jae
Journal of Educational Research in Mathematics.  31 (2021)  2 - p. 131-152 , 2021
Link: https://doi.org/10.29275/jerm.2021.31.2.131