Nirmala N. EFFORTS TO INCREASE THE ACTIVITY AND ACHIEVEMENT OF LEARNING SCIENCE IN LIFETIME MATERIALS WITH STUDENT METAMORPHOSIS CLASS IV SDN 9 THROUGH METHODS EVERYONE IS TEACHER HERE SEMESTER 2 STUDY YEAR 2018/2019. JGK [Internet]. 2020 Sep. 5 [cited 2025 Jul. 4];4(4):118-2. Available from: https://jurnal.unimed.ac.id/2012/index.php/jgkp/article/view/20591