PENGEMBANGAN LEMBAR KERJA SISWA (LKS) MATERI GARIS DAN SUDUT DENGAN PENDEKATAN PENEMUAN TERBIMBING PADA SISWA SMP KELAS VII

Abstract

The purpose of the research is to worksheets for lines and angles material with guided discovery approach for the seventh grade students of junior high school and to determine its eligibility in terms of the validity, the practicality, and the effectiveness aspects. The type of this research is Research and Development. The development instruction model refers to ADDIE, which is the abbreviation of Analysis, Design, Development, Implementation, and Evaluation. The subject in the research is worksheets for lines and angles material with guided discovery approach. The instruments used in the research are the worksheets eligibility assessment sheet (subject matter experts, media expert, and teachers) for validity aspect, observation sheet and interview guideline for practical aspects, as well as achievement test for effectiveness aspects. The result of the research shows that the worksheets can be considered eligible based on validity aspects i.e the eligibility criteria of the worksheets that is â€very well†with the total validator mean is 172. The practical aspect of the observation and interviews, from the implementation of 8 LKS, was improved in 8 corrective actions. Worksheets are feasible based on practical aspects of the revision. The effectiveness of worksheets with minimal completeness criteria 74, the percentage of completeness in SMP Negeri 4 Yogyakarta is 75% and in Junior High School 15 Yogyakarta is 67,65%, so the Student worksheets is effective for both schools.