List of Articles Challenging level

• Open Access Article
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  1 - Multilevel analysis of the relationship between perception of teachers' diagnostic skills, challenging level of class, quality of teacher teaching and positive achievement emotions with math performance in ninth-grade students
  Arash akhash askar atashafrouz Manijeh Shehni Yailagh Morteza Omidian
  10.30495/jpmm.2023.32035.3806