<![CDATA[The study aims to describe the results of the implementation of Students’ Worksheets with the Project-Based Learning (PjBL) model in training students' collaboration skills. The research uses the Pre-Experiment method with a One-Group Pretest-Posttest design. The population consisted of 224 students from 7 study groups, which were then selected 1 class with a total of 30 students from class VII B SMPN 1 Sleman. The instrument used was in the form of a collaboration questionnaire and the results were analyzed statistically descriptively. The results showed that the average pretest score was 35.13 and the posttest was 59.62. This increase was confirmed through an N-Gain score of 0.36 which is classified as a medium category, These findings show that the implementation of LKPD with the PjBL model is quite effective in training students' collaboration skills, as well as making a positive contribution to the development of their collaborative abilities in the learning process.]]>
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