PENERAPAN MODEL PEMBELAJARAN PERUBAHAN KONSEPTUAL UNTUK MENINGKATKAN PEMAHAMAN KONSEP DAN MOTIVASI BELAJAR FISIKA SISWA KELAS XI IPA 1 SMA NEGERI 3 SINGARAJA TAHUN AJARAN 2013/2014

Abstract

Penelitian tindakan kelas ini bertujuan (1) meningkatkan pemahaman konsep siswa, (2) meningkatkan motivasi belajar siswa, (3) mendeskripsikan tanggapan siswa terhadap penerapan model pembelajaran perubahan konseptual. Penelitian ini dilaksanakan di kelas XI IPA 1 SMA Negeri 3 Singaraja pada semester 2 tahun ajaran 2013/2014 dengan melibatkan 24 orang siswa. Penelitian tindakan ini terdiri dari 2 siklus tindakan dengan materi fluida. Setiap siklus terdiri dari empat tahap, yaitu perencanaan, pelaksanaan, observasi dan refleksi. Objek penelitian ini adalah pemahaman konsep fisika, motivasi belajar, tanggapan siswa terhadap penerapan model pembelajaran perubahan konseptual, dan model pembelajaran perubahan konseptual. Data penelitian terdiri dari data pemahaman konsep, motivasi belajar dan tanggapan siswa terhadap penerapan model pembelajaran perubahan konseptual. Data pemahaman konsep fisika siswa dikumpulkan dengan tes pemahaman konsep, motivasi belajar dan tanggapan siswa terhadap penerapan model pembelajaran perubahan konseptual dikumpulkan dengan angket. Data yang telah terkumpul dianalisis secara deskriptif. Kriteria keberhasilan penelitian ini adalah nilai pemahaman konsep siswa 77 dan ketuntasan klasikal (KK) 85%, skor rata-rata motivasi belajar siswa minimal berada pada kategori tinggi, dan skor rata-rata tanggapan siswa terhadap penerapan model pembelajaran perubahan konseptual minimal berada pada kategori positif. Hasil penelitian menunjukkan, (1) terjadi peningkatan pemahaman konsep fisika siswa (siklus I: = 83,07, KK = 87,50% dan siklus II: = 86,46, KK=100%), (2) motivasi belajar siswa mengalami peningkatan setelah diimplementasikan pembelajaran dengan model pembelajaran perubahan konseptual (siklus I: =79,83 dengan kategori tinggi, siklus II: =80,08 dengan kategori tinggi), dan (3) tanggapan siswa terhadap implementasi pembelajaran Fisika dengan model pembelajaran perubahan konseptual adalah positif.
Kata Kunci : model pembelajaran perubahan konseptual, pemahaman konsep, dan motivasi belajar

The aim of this classroom action research were (1) to improve the students’ physics concept understanding, (2) to improve their learning motivation, and (3) to describe their responses towards conceptual change learning model in physics. This study was conducted at class XI IPA 1 SMA Negeri 3 Singaraja in 2nd semester of the academic year 2013/2014 by involving 24 students. This classroom action research consisted of two cycles with fluida material. Every cycle consists of four stages were planning, acting, observation, and reflection. The Objects of this study were the students’ physics concept understanding, learning motivation, student responses, and conceptual change learning model. The data from this study were physics concepts, students’ learning motivation and the students’ responses toward conceptual change learning model. The data of physics concepts were collected by a test, while the students’ learning motivation and the students’ responses toward conceptual change learning model were obtained by using questionnaire. The successful criteria of this study were ≥ 77 for value of students’ physics concept understanding and ≥ 85% for classical completeness, while the average value of student learning motivation was at least at the high category, and the average value of student responses toward the application conceptual change model was at least on positive category. The result showed that (1) there was an improvement on the students’ physics concepts understanding (Cycle I: = 83,07, KK=87,50% and Cycle II: =86,46, KK=100%), (2) there was improvement in the students’ learning motivation after the implementation of the conceptual change learning model (Cycle I: = 79,83 with high category and Cycle II: =80,08 with high category), and (3) the students’ responses were positive toward implementation of conceptual change learning model in physics teaching.
keyword : conceptual change learning model, physics concepts, and learning motivation