The effect of lesson observations by other teachers on Lesson Study promotion and collegiality 論文 Tomoya Shiraishi・Kazuhiko Saito・Alexander Kuga・Yoshimi Yamahira・Shotaro Iwata ·2024 ·『スポーツと開発』 3(0) pp. 1-7 doi:10.34611/sportanddevelopment.3.0_1