APPLICATION OF A COOPERATIVE LEARNING MODEL OF CONCEPT SENTENCE TYPE ASSISTED WITH SERIES OF PICTURES TO IMPROVE PARTICIPANTS’ NARRATIVE ESSAY WRITING SKILLS EDUCATION IN CLASS IV SDN 04 CUPAK SOLOK DISTRICT. PIONIR: JURNAL PENDIDIKAN, [S. l.], v. 13, n. 1, p. 145–156, 2024. DOI: 10.22373/pjp.v13i1.22636. Disponível em: https://jurnal.ar-raniry.ac.id/index.php/Pionir/article/view/22636. Acesso em: 13 mar. 2026.