Isbadrianingtyas, N., Sa’dijah, C., Dasna, I.W. and Eddy Sutadji 2024. Development of challenges-based learning thematic model to improve critical thinking skills for primary school students. Research and Development in Education (RaDEn). 4, 1 (May 2024), 533–542. DOI:https://doi.org/10.22219/raden.v4i1.32910.