PENGEMBANGAN LKPD INKUIRI BERPENDEKATAN NESTED UNTUK MELATIHKAN KETERAMPILAN PROSES SAINS PADA MATERI LAJU REAKSI

The LKPD Inquiry Development of Nested Approach to Training Science Process Skills in Reaction Rate Material

Penelitian ini bertujuan untuk mengetahui kelayakan LKPD inkuiri berpendekatan nested dalam rangka melatih keterapilan proses sains siswa. Metode yang digunakan adalah desain pengebangan 4-D dilakukan sampai tahap pengembangan. Uji coba LKPD dibatasi pada 12 siswa kelas XI MIPA SMAN 1 Sidayu yang belum mendapatkan materi laju reaksi. Instruen yang digunakan terdiri dari lembar tes (pretest dan posttest) keterampilan proses sains (KPS),  tes ranah pengetahuan, telaah, validasi, aktivitas dan angket respon. Pengembangan LKPD ini dinyatakan layak digunakan karena hasil penelitian diperoleh nilai validasi ≥61% dan nilai yang diperoleh siswa ≥75 sesuai kriteria ketuntasan minimal sekolah. Presentase validasi kriteria isi 86,3%, kesesuaian dengan inkuiri 80%, kesesuaian dengan komponen keterampilan proses sains 80%, bahasa 90,7%, dan grafis 90,7% kategori valid secara teoritis dan empiris. Respon peserta didik menunjukkan respon positif dengan persen rata-rata 93% kriteria sangat merespon. LKPD yang dikembangkan efektif digunakan karena tes keterampilan proses sains (KPS) diperoleh n-gain skor sebesar 0,84 kategori sangat tinggi. Hal terrsebut didukung dengan hasil tes pengetahuan diperoleh nilai rata-rata yang diperoleh ≥75 yang berarti sudah memenuhi kriteria ketuntasan minimal sekolah.

Kata Kunci: LKPD, Inkuiri, Nested, Keterapilan Proses Sains, Laju Reaksi

This research aims to determine the feasibility of an inquiry LKPD with a nested approach in order to train students’ science process skills. This research method used a 4-D block design which wasdone only until the develop stage. The LKPD trial was limited to 12 students of class XI MIPA SMAN 1 Sidayu who had not received material on reaction rates. The instruments used consisted of test sheets (pretest and posttest) for science process skills, domain knowledge tests, study sheets, validations, activity and response questionnaires. The results showed that the LKPD which is developed was feasible based on the validation value ≥61% and the values which are obtained by students≥75 according to the minimum completeness criteria for school. The percentage of content criteria validation was 86.3%, conformity with inquiry was 80%, conformity with science process skills components was 80%, language was 90.7%, and graphics were 90.7% theoretically and empirically valid. The response of students showed a positive response with an average percentage of 93% very responding criteria. The developed LKPD was effectively used because the results of the science process skills test obtained an n-gain score of 0.84 in the very high category. It was supported by the results of the knowledge test obtained by an average value of ≥75, which meant that it hadfulfilled the minimum completeness criteria for school.

Keywords: LKPD, Inquiry, Nested, Skills of Science Process, Rate of Reaction