KEVALIDAN LEMBAR KEGIATAN SISWA BERBASIS INKUIRI TERBIMBING UNTUK MENINGKATKAN KETERAMPILAN PROSES SAINS PADA MATERI TEKANAN ZAT CAIR

VALIDITY OF STUDENT ACTIVITY SHEET BASED ON GUIDED INQUIRY TO IMPROVE SCIENCE PROCESS SKILL IN LIQUID PRESSURE MATTERIES

Penelitian ini bertujuan untuk mendeskripsikan kevalidan LKS berbasis inkuiri terbimbing untuk meningkatkan keterampilan proses sains pada materi tekanan zat cair. Penelitian ini dilakukan di SMPN 15 Surabaya pada kelas VIII. Jenis penelitian yang digunakan adalah model pengembangan R&D (Research and Development) dan penelitian ini telah sampai pada tahap ke-5. Tahapan tersebut meliputi potensi dan masalah, pengumpulan data, desain produk, validasi produk, dan revisi produk. Instrumen penelitian yang digunakan yaitu lembar validasi LKS untuk mengukur kevalidan. Dari hasil penilaian yang didapatkan melalui proses validasi oleh validator dosen ahli dan guru mata pelajaran IPA didapatkan rata-rata nilai validitas pada aspek identitas LKS sebesar 94,66% dan 93,33%, aspek syarat didaktik sebesar 90,66%, aspek syarat konstruksi sebesar 96,66% dan 95,00%, pada aspek sayarat teknis sebesar 95,55% dan 91,10%. Simpulan penelitian LKS berbasis inkuiri terbimbing untuk meningkatkan keterampilan proses sains pada materi tekanan zat cair berkategori valid.

Kata Kunci: Validitas, LKS, Inkuiri Terbimbing, Tekanan Zat Cair

This research aims to describe the validity an of student activity sheet which based on guided inquiry to improve the science process skills in liquid pressure. This research was conducted at SMPN 15 Surabaya in class VIII. The type of research that used is the R&D (Research and Development), and this research has reached to the 5th step. The steps include potential and problems, data collection, product design, product validation, and product revisions. The research instrument that used is activity sheet validation worksheet to measure a validity. From the result that is obtained through validation process by the validator of expert lecturer and science teacher, the average score of validity the aspect of identity student activity sheet is 94.66% and 93,33%, aspect of construction requirements is 90,66%, aspect of didactic requirements is 96,66% and 95,00%, on aspect of technical requirements is 95,55% and 91,10%. Conclusions of student work sheet based on guided inquiry to improve science process skill in liquid pressure materies is valid.

Keywords: Validity, Student Activity Sheet, Guided Inquiry, Liquid Pressure.