Yang X. The Teaching Reform Practice of Integrating BOPPPS Mode into Ideological and Political Education in Higher Vocational Preschool Education Major Courses: Taking the "Preoperational Stage" of "Developmental Psychology of Preschool Children" as an Example. IJOSSER. 2026;9(5):82-89. doi:10.6918/IJOSSER.202605_9(5).0010