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Meltem Kocak; Ceyhun Ozan; Duygu Ileritürk; Osman Buran; Remzi Kincal; Yasin Soylu – Online Submission, 2021
The aim of the study was to test the effect of teachers' professional development upon students' mathematics academic achievement levels with the help of lesson study. In this manner, the study aimed at increasing students' mathematics learning levels via lesson study. Action research was used as research method in the study. The sample of the…
Descriptors: Foreign Countries, Middle School Students, Grade 6, Middle School Teachers