This study looked at how well using PBL along with Mind Mapping helps eighth-grade students improve their skills in writing observation reports. The study took place at SMP Negeri 2 Sekaran and involved 14 students who took part in the research. A basic study plan was used with one group, where measurements were taken before and after an experiment. The information was gathered from watching teachers and students, from a survey about how students felt, and from writing tests given before and after the teaching program. The data were then looked at using simple statistics, the Shapiro-Wilk test to check if the data is normal, and the Paired Samples t-test to test the research idea. The results showed that using Problem-Based Learning along with Mind Mapping was done well. The teacher's activity score was 88%, which is very good. The students' activity score was 82%, also very good. The students' response score was 79%, which is good. The students' writing skills got much better. Their average score went up from 58 in the first test to 84 in the last test. Also, the test showed a significance value of 0. 000, which is below the 0. 05 level These results show that using Problem Based Learning and Mind Mapping together really helped students improve their skills in writing observation reports. So, this teaching method can be seen as a different way to help students improve their writing skills.
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