<![CDATA[Creative thinking is one of the core 4C competencies students need to master in the 21st century, yet many senior high school students in Indonesia still show a low level of this skill, particularly when learning environmental change topics that rely heavily on rote memorization. This study examines how an E-LKPD (electronic student worksheet) built on the Project Based Learning model, using a takakura composting basket as the student product, could be implemented to improve tenth-grade students' creative thinking on the topic of Environmental Change, and how practical the worksheet was for classroom use. A One Group Pretest-Posttest Design was applied to tenth-grade students at SMA Labschool Unesa 1 Surabaya, with data gathered through observation sheets, an E-LKPD assessment rubric, a student response questionnaire, and pretest-posttest questions covering four indicators of creative thinking: fluency, flexibility, originality, and elaboration. The implementation of the PjBL syntax scored an average of 3, categorized "Good," while the E-LKPD itself was rated 84.64, also "Good." Students responded very positively, with a practicality score of 98.79%, categorized "Very Practical." Creative thinking improved substantially after the intervention, with the average score rising from 66.90 to 89.76, yielding an N-Gain of 0.62, slightly higher than the control class's 0.60. These findings confirm that a PjBL-based E-LKPD paired with a hands-on product like the takakura basket can meaningfully train students' creative thinking while remaining practical for teachers. This study contributes an alternative digital, project-based teaching material for environmental change instruction and supports integrating waste-management practices into science learning.]]>
