Model Learning by Doing merupakan suatu rangkaian kegiatan belajar yang melibatkan secara maksimal seluruh kemampuan dan keterampilan siswa untuk mencari dan mengetahui secara sistematis, kritis dan logis, analitis, dan mereka dapat merumuskan penemuan dan pengalamaya dalam kehidupan sehari-hari.

Penelitian ini bertujuan untuk mendeskripsikan keterlaksanaan pembelajaran, respon siswa dalam menggunakan model pembelajaran learning by doing dan peningkatan hasil belajar siswa pada materi alat ukur mekanik presisi pada kelas X program keahlian teknik permesinan di SMK Negeri 1 Sarirejo. Penelitian ini merupakan penelitian Pre-eksperimen design yang membandingkan antara hasil Pre-Test dan Posttest. Populasi penelitian ini adalah seluruh siswa kelas X program keahlian teknik permesinan di SMK Negeri 1 Sarirejo tahun ajaran 2018/2019 dengan sampel berjumlah 19 siswa.

Data hasil perhitungan ketercapaian hasil belajar pada Pre-test mencapai presentase 21,05 % sebanyak 4 siswa dan ketercapaian hasil belajar pada Post-test mencapai presentase 84,2% sebanyak 16 siswa dari presentase tersebut dapat dilihat bahwa peningkatan hasil belajar dari Pre test Menjadi Post Test masuk ketegori interprestasi yang kuat dengan sumbangan efektif hasil belajar (R2 = 0,648 ≥ 0,05). Dapat disimpulkan bahwa setelah menggunakan model pembelajaran Learning by Doing hasil belajar siswa menjadi lebih baik dan mengalami peningkatan. Kegiatan pembelajaran dengan menggunakan model pembelajran Lerarning by Doing pada materi alat ukur mekanik presisi terlaksana dengan sangat baik dengan presentase rata-rata 90,58% dari hasil observasi pengamat terhadap peneliti. Penerapan model pembelajaran Learning by Doing mendapatkan respon yang sangat baik dan kuat dari siswa dengan hasil presentase mencapai 86% dengan kategori sangat baik.

Kata  kunci: Model Pembelajaran Learning by Doing, Alat Ukur, Hasil Belajar Siswa

Learning by Doing model is a series of learning activities that involve a maximum of all the abilities and skills of students to find and know systematically, critically and logically, analytically, and they can formulate findings and experiences in everyday life.

This study aims to describe the feasibility of learning, the response of students in using the learning by doing learning model and improving student learning outcomes in precision mechanical measuring material in class X engineering engineering skills program at SMK Negeri 1 Sarirejo. This research is a Pre-experimental design that compares the Pre-Test and Posttest results. The population of this research is all students of class X engineering engineering skills program at SMK Negeri 1 Sarirejo 2018/2019 academic year with a sample of 19 students.

Data on the results of the calculation of achievement of learning outcomes in the Pre-test reached a percentage of 21.05% as many as 4 students and the achievement of learning outcomes in the Post-test reached a percentage of 84.2% as many as 16 students from that percentage can be seen that the increase in learning outcomes from the Pre-test to the Post Admission test in the category of strong interpretation with effective contribution of learning outcomes (R2 = 0.648 ≥ 0.05). It can be concluded that after using the Learning by Doing learning model student learning outcomes become better and increase. Learning activities using the learning model of Lerarning by Doing on mechanical measuring material precision performed very well with an average percentage of 90.58% from observers' observations of researchers. The application of the Learning by Doing learning model gets a very good and strong response from students with a percentage of 86% with very good categories.

Keywords: Learning by Doing Learning Model, Measuring Instrument, Student Learning Outcomes