Prospective Teachers’ Knowledge of Evaluating Student Errors on Area Conservation TaskRooselyna Ekawati, Ahmad Wachidul Kohar, Masriyah Masriyah, Abdul Haris Rosyidi, Budi Priyo Prawoto and Evangelista Lus Windyana PalupiE3S Web Conf., 328 (2021) 06001DOI: https://doi.org/10.1051/e3sconf/202132806001