Tutut Nurita, Sapti Puspitarini, Adlina Nafis Nurina, Attaqotul Ula, Naura Maheshi, Ruruh Susilowati
This study aims to describe wordwall as a formative assessment on light refraction material to improve students' concept understanding. This type of research is descriptive quantitative using research subjects as many as 30 students. The instrument used is a multiple choice object test as a formative assessment on the wordwall to measure students' concept understanding ability on material that discusses the refraction of light from a dense medium to a dense medium and material that discusses the refraction of light from dense to dense. The results of this study indicate that students better understand the material of light refraction from dense to tenuous, this can be seen on average showing a result of 88.1 on the formative assessment of light refraction material from tight to tenuous while on the material of light refraction from tenuous to tight medium shows lower results of 79.0. © 2025 Author(s).
Department of Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya, Surabaya, 60231, Indonesia
