Location tracking activity to develop spatial concept understanding: Case study of grade 9 students in SMPN 1 LembangTotok Doyo Pamungkas, Jalu Rafli Ismail, Stefan Primananda and Viola Gustia FadillahE3S Web Conf., 600 (2024) 02019DOI: https://doi.org/10.1051/e3sconf/202460002019