Pengembangan Perangkat Pembelajaran Model Investigasi Kelompok (Groups Invest…

The learning tool developed is a group investigation model learning device (Groups Investigation) on sound wave material for junior high school students, consisting of a Lesson Plan (RPP), Student Worksheet (LKPD), and Learning Outcomes Test. Learning Science Physics and validating learning tools for the Group Investigation model (Groups Investigation) on sound wave material. This type of resea…