The results of this study are: 1) the results of the questionnaire on the needs of students and teachers indicate that there is a need for LKPD based on the PBL model on theme 6 sub-theme 1 of the social studies lesson on natural resources, 2) The LKPD development process is carried out in 8 steps. LKPD is designed with A4 paper size, made attractive with colorful pictures, and contains pictures of natural resource materials that are associated with everyday life, 3) LKPD based on the PBL model is feasible to use after validation by material experts and teaching materials experts. The material expert gave a total score of 54 with a very good category, and on the validation, the teaching materials expert gave a total score of 100 with a good category, 4) The results of the effectiveness test of LKPD based on the PBL model based on statistical analysis that the LKPD based on the PBL model is feasible to use in learning based on the sig value of 0.000 greater than 0.05 and t-count 17.75000 > t-table 8.1876. As a result, LKPD teaching materials have been effective and suitable for use by fourth-grade students.
Febriani et al. (Sun,) studied this question.