Penelitian ini bertujuan untuk menghasilkan model senam Si Buyung untuk pembelajaran motorik kasar pada siswa TK. Senam Si Buyung yang dikembangkan diharapkan dapat digunakan guru TK sebagai salah satu bentuk pembelajaran motorik kasar pada siswa TK. Penelitian pengembangan ini dilakukan dengan langkah-langkah penelitian sebagai berikut: (1) pengumpulan informasi di lapangan, (2) melakukan analisis terhadap informasi yang telah dikumpulkan, (3) mengembangkan produk awal (draf model), (4) validasi ahli dan revisi, (5) uji coba lapangan skala kecil dan revisi, (6) uji coba lapangan skala besar dan revisi, dan (7) pembuatan produk final. Uji coba skala kecil dilakukan terhadap siswa kelas B dari TK Amal Mulia Mancasan yang berjumlah 15 anak. Uji coba skala besar dilakukan terhadap siswa kelas B dari TK Purbasari Dukuhsari Kalasan yang berjumlah 45 anak. Instrumen pengumpulan data yang digunakan yaitu; (1) angket, (2) lembar pedoman observasi senam Si Buyung, (3) lembar format penilaian anak. Teknik analisis data yang dilakukan yaitu analisis deskriptif kuantitatif dan analisis deskriptif kualitatif. Penelitian ini menghasilkan model senam Si Buyung untuk pembelajaran motorik kasar pada siswa taman kanak-kanak. Produk hasil penelitian pengembangan berupa buku RKH (Rencana Kegiatan Harian) dan video senam Si Buyung yang dibuat dalam bentuk CD. Dari hasil penilaian para ahli materi, dapat ditarik kesimpulan bahwa model senam Si Buyung yang dibuat layak digunakan untuk pembelajaran motorik kasar pada siswa TK.  A GYMNASTIC MODEL SI BUYUNG AS A MEDIUM IN GROSS MOTOR LEARNING FOR KINDERGARTEN STUDENTSAbstract This research is aimed at developing a gymnastic model named Si Buyung as a medium in gross motor learning for kindergarten students. This gymnastic model is developed to help kindergarten teachers in conducting the teaching and learning of gross motor effectively and sufficiently. This educational research and development (R & D) was conducted by adapting R & D steps according to Borg & Gall (1983, p.775), consisting of: (1) collecting information, (2) information analysis, (3) developing initial product, (4) expert validation and revision, (5) preliminary field test and revision, (6) main field test and revision, and (7) making the final product. The preliminary field test was conducted to 15 students Class B of TK Amal Mulia Mancasan and the main field test was conducted to 45 students Class B of TK Purbasari. Dukuhsari Kalasan Yogyakarta. Data collecting instrument used were: (1) questionnaire, (2) observation guide line in Si Buyung (3) scoring guide line for students’ involvement in Si Buyung gymnastic. The data were analyzed using quantitative descriptive analyses and qualitative descriptive analyses.Based on the data and results of the study, it can be concluded that Si Buyung as a gymnastic model is appropriate and as a teaching and learning medium in gross motor learning for kindergarten students. The results of this study are in the forms of a book RKH (Rencana Kegiatan Harian) and Compact Disc (CD). Based on some judgements of the experts, it can be concluded that a gymnastic model Si Buyung developed is appropriate to be applied in the teaching of gross motor towards the students of kindergarten. Keywords: gymnastic Si Buyung, gross motor, and kindergarten students.

This research was conducted based on problems in learning in the development of physical motor skills, especially the gross motor skills of Asy Syaffa Kindergarten students. This study aims to determine the use of Si Buyung's gymnastics in improving gross motor skills in early childhood in Asy Syaffa Kindergarten. The experimental method was applied in this study by giving 14 treatments, including pretest and posttest. The research subjects were 24 students with the sampling technique, namely purposive sampling. This research instrument uses the Gross Motor Test, which consists of a 50-meter sprint test, Dodgin run, Standing Broad Jump test, Soft Ball Throw test, Wall Pass test, Medicine Ball put test. The results of hypothesis testing found that there was an effect of Si Buyung's gymnastics on the gross motor skills of early childhood. With the conclusion criteria t count > t table, 4,062 > 2,068 and the value of sig. 2-tailed 0.000 < 0.05 so that the hypothesis is accepted. So this study proves that Si Buyung's gymnastics can improve motoric movement in early childhood. The implications of this research are expected to be an alternative for kindergarten teachers as a learning approach to developing children's gross motor movements.