“Developing of Teaching Modules With PBL-STEM Model of Photosynthesis Material to Increase Critical Thinking Skills of Grade IV Elementary School Students ”. JOURNAL OF TEACHING AND LEARNING IN ELEMENTARY EDUCATION (JTLEE) 7, no. 1 (February 1, 2024): 134–147. Accessed November 6, 2025. https://jtlee.ejournal.unri.ac.id/index.php/JTLEE/article/view/80.