Exploring a STEM-Integrated Instructional Approach and Its Preliminary Contextual Assessments of Problem-Solving and Motivation in Oman - Marwa Al-Hinai; Mohamed A. Shahat; Ehab Omara; Mahmoud M. Emam; Sameh S. Ismail; Nabil Alhabsi; Khoula Alhosni; Mohammed Al-Amri; Amur Al-Yahmedi; Yasser M. Fawzy; Sulaiman M. Al-Balushi (European Journal of STEM Education, 2026)