Pengembangan Lembar Kegiatan Siswa (LKS) berbasis praktikum materi sifat-sifat cahaya untuk meningkatkan hasil belajar siswa kelas V SDN Sidorejo 02 Kecamatan Jabung

INDONESIA: Penelitian pengembangan ini dilatarbelakangi oleh kenyataan bahwa belum tesedianya bahan ajar LKS berbasis praktikum di SDN Sidorejo 02 Kecamatan Jabung. Alasan peneliti mengembangkan LKS berbasis praktikum adalah agar pembelajaran lebih terpusat pada siswa sehingga siswa lebih mudah memahami materi pelajaran dan dapat memecahkan masalah yang dihadapi dalam pembelajaran sehingga hasil belajar siswa bisa mengalami peningkatan. Tujuan penelitian adalah (1) untuk menghasilkan produk berupa LKS berbasis praktikum, (2) menjelaskan efektifitas dan kemenarikan bahan ajar, (3) menjelaskan perolehan peningkatan hasil belajar siswa melalui penggunaan LKS berbasis praktikum. Penelitian pengembangan ini menggunakan jenis penelitian pengembangan Research and Development (R & D), dengan mengadaptasi dari model Dick and Carey. Prosedur pengembangan yang dilakukan yaitu, (1) identifikasi LKS yang digunakan guru dan siswa, (2) Menuliskan SK, KD, dan tujuan pembelajaran, (3) penyusunan LKS berbasis praktikum, (4) validasi ahli isi, ahli desain, guru mata pelajaran, (5) revisi produk berdasarkan perolehan nilai validasi, (6) menyusun soal pre tes dan pos tes, (7) penelitian, (8) penilaian keefektifan dan kemenarikan produk. Berdasarkan hasil validasi dari ahli isi bahan ajar menunjukkan persentase 83%, ahli desain 81%, validasi guru 97%. Hal ini menunjukkan bahwa LKS layak digunakan. Kelayakan LKS dikarenakan materi LKS sesuai dengan kurikulum yang berlaku, desain yang menarik, dan dapat meningkatkan pemahaman siswa. Kualifikasi keefektifan dan kemenarikan bahan ajar LKS berbasis praktikum diberikan oleh siswa dengan analisis keseluruhan mencapai 97%. Hal ini menunjukkan bahwa bahan ajar sangat efektif dan sangat menarik digunakan oleh siswa karena memiliki kejelasan langkah praktikum dan kemenarikan gambar. Peningkatan hasil belajar menggunakan LKS berbasis praktikum dapat dilihat dari hasil pre-test dan post-test pada siswa kelas V SDN Sidorejo 02 Kecamatan Jabung. Berdasarkan analisis dengan menggunakan uji T menghasilkan t hitung 15,858 dan ttabel 1,701. Hal ini menunjukkan bahwa LKS berbasis praktikum yang telah dibuat mampu meningkatkan hasil belajar siswa. Peningkatan hasil belajar pada siswa dikarenakan LKS berbasis praktikum dapat memotivasi siswa belajar dan membantu siswa memahami konsep materi. ENGLISH: This development research is motivated by the fact that the unavailability the materials teaching of the student worksheet in the SDN Sidorejo 02 District of Jabung. The reason of researchers to developed the student worksheets is so as in learning more focused on the students so that students more easily understand the material in this subject and can solve problems encountered in learning so that students learning outcomes could be increased. The purpose of this research are (1) to produce a student worksheets, (2) describes the effectiveness and attractiveness of the teaching materials, (3) describes the acquisition of improving student learning outcomes through the use of student worksheets. This development of research is use type of Research and Development (R & D) research, by adapting the model of Dick and Carey. Development procedures are, (1) identification student worksheets used by teachers and students, (2) Writing SK, KD, and learning objectives, (3) the preparation of worksheets based practice, (4) validation of the content expert, design expert, teachers , (5) revision of the product is based on the acquisition value of validation, (6) develop pre-test and post about the test, (7) research, (8) assessment of effectiveness and attractiveness of the product. Based on the results of the validation of the expert content of teaching materials shows the percentage of 83%, design expert 81%, teachers validation 97% . This suggests that student worksheet (LKS) fit for use. Feasibility student worksheet (LKS) is because of the student worksheet (LKS) have a material that accordance with the applicable curriculum, attractive design, and can increase students' understanding. Qualifications the effectiveness and attractiveness of the teaching materials provided by the based practicum students to achieve a 97% overall analysis. This suggests that the teaching materials are very effective and very attractive used by students because it has the clarity and attractiveness practical step pictures. The improve of students outcomes using the student worksheet bbasedd on practice can be seen from the result of pre-test and post test in 5th grade SDN Sidorejo 02 Distric of Jabung. Based on the analysis using the Ttest is produces tcount 15.858 and ttable 1.701. This indicates that student worksheets that have been made can improve student learning outcomes. Improvement of learning outcomes based on student worksheet can motivating the students and helping students to understand the concept of material