PENGEMBANGAN LKPD BERBASIS PJBL UNTUK MENINGKATKAN CRITICAL THINKING MATERI SISTEM PERNAPASAN PADA MANUSIA KELAS V SD

Project-based learning-based student worksheets are the end result of this study's efforts to foster critical thinking among fifth graders. Analysis, Design, Development, Implementation, and Evaluation (ADDIE) is the development model employed in this research (Research and Development). Tests and surveys are the primary research instruments here. The test is designed to measure the critical thinking skills of fifth graders, while the survey is used to validate the product and assess its usefulness to teachers. Experts in media, materials, and languages all contributed to the product's validity test. Expert validation by media professionals yielded 100% validity, expert validation by material professionals yielded 95% validity and revisions according to suggestions, and expert validation by linguists yielded 92% validity and revisions according to suggestions. The findings of the teacher survey indicated that the majority of the LKPD teaching materials based on Project Based Learning were very practical, achieving a score of 88%. The results of the critical thinking ability test on students can be obtained with an average of 0.71 and 0.82 which means there is an increase in the high category.