Penerapan Model Problem Based Learning (PBL) Berbasis Pendekatan Saintifik untuk Meningkatkan Penguasaan Konsep pada Materi Pokok Kelarutan dan Hasil Kali Kelarutan

JRPK: Jurnal Riset Pendidikan Kimia

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Title Penerapan Model Problem Based Learning (PBL) Berbasis Pendekatan Saintifik untuk Meningkatkan Penguasaan Konsep pada Materi Pokok Kelarutan dan Hasil Kali Kelarutan
 
Creator Rafiuddin, R
Dali, Arniah
Anton, La Ode Rusdi
 
Description Has conducted research that aims to determine the effectiveness of the application of models problem based learning based on a scientific approach to the mastery of concepts. The study design using pretest-posttest control group. The study population was divided into two parallel classes as many as 58 students. The sampling technique used technique. purposive sampling Samples of this research is class XI-IPA4 as an experimental class at 29 students and class XI IPA1 as the control class as many as 29 students. Research instruments to determine the characteristics of the concept of using the format of concept analysis and concept map format. Profile mastery of concepts using reasoned multiple choice test items as much as 10 numbers. Increasing mastery of the concept of using formula. The N-gain The effectiveness of learning using different test formula (t). As well as the responses of students using a questionnaire. Based on the analysis found the data: (1) There are 14 label concept in the   subject matter  solubility  and  solubility  product,  consisting  of  28%  concept  stating  abstract principles include:  Equilibrium  Solubility,  K o n s t a n t a  S o l u b i l i t y  P r o d u c t  (Ksp),  Q u o s i e n  S o l u b i l i t y P r o d u c t  (Qsp), and the electrolyte is difficult Late, there are 14.29% concept that states the size of the attributes include: temperature and degree of acidity (pH), as well  as 57.14% are concepts that  express  the process include: solubility, homogenity ion, Precipitation, electrolytes, electrolytes binary, ternary electrolytes, electrolytes Quaternary, Saturated solution; (2) Obtained comparisonmean score of post- test  the  highest  and  lowest  grade  students  mastery  of  concept  experiment  and control   class. Comparison of scores post-test highest, 97.04> 94.58 on the label Saturated Solution concept, while the scores compare post-test experimental class that is 72.70 lows on the label concept ternary electrolytes and 70.43% in the control group; (3) The N-Indexgain of 0.77 categorized experimental class  higher  than  the  control  class  was  0.70  category  being;  (4)  The  application  of models problem based learning based on experimental class scientific approach effectively improve the mastery of concepts students with post-test and N-gain sig. (2-tailed) <0,05, then effective to apply to groups of high and medium-ability students; (5) The application ofmodels problem based learning based on scientific approach has a good response with the percentage of 75.16%.
 Keywords
Problem Based Learning Model, Approach Scientific, Control Concepts, solubility and Solubility Product Constants
Telah dilakukan penelitian yang bertujuan untuk mengetahui keefektifan penerapan model problem based learning berbasis pendekatan saintifik terhadap penguasaan konsep. Desain penelitian menggunakan  pretest-posttest  control  group  design.  Populasi  penelitian  ini  terbagi  atas  dua  kelas paralel  sebanyak  58  siswa.  Teknik  pengambilan  sampel  menggunakan  teknik  purposive  sampling. Sampel penelitian ini yaitu kelas XI-IPA4  sebagai kelas eksperimen sebanyak 29 siswa dan kelas XI- IPA1   sebagai kelas kontrol sebanyak 29 siswa. Instrumen penelitian untuk menentukan karakteristik konsep menggunakan format analisis konsep dan format peta konsep. Profil penguasaan konsep menggunakan butir tes pilihan ganda beralasan sebanyak 10 nomor. Peningkatan penguasaan konsep menggunakan  rumus  N-gain.  Efektivitas  pembelajaran  menggunakan  rumus  uji  beda  (t).  Serta tanggapan siswa menggunakan angket. Berdasarkan hasil analisis ditemukan data: (1) Terdapat 14 label  konsep  pada  materi  pokok  Kelarutan  dan  Hasil  Kali  Kelarutan,  terdiri  dari  28%  konsep menyatakan prinsip abstrak meliputi: Kesetimbangan Kelarutan, Hasil Kali Ion Kesetimbangan (Ksp), Hasil Kali Ion (Qsp), dan Elektrolit Sukar Larut, terdapat 14,29% konsep yang menyatakan ukuran atribut meliputi: Suhu dan Derajat Keasaman (pH), Serta terdapat 57,14% konsep yang menyatakan proses meliputi: Kelarutan, Ion Senama, Pengendapan, Larutan Elektrolit, Elektrolit Biner, Elektrolit Terner, Elektrolit Kuarterner, Larutan Jenuh; (2) Diperoleh perbandingan rerata skor post-test tertinggi dan terendah penguasaan konsep siswa kelas eksperimen dan kelas kontrol. Perbandingan untuk skor post-test tertinggi yaitu 97,04>94,58 pada label konsep Larutan Jenuh, sedangkan perbandingan skor post-test terendah kelas eksperimen yaitu 72,70 pada label konsep Elektrolit Terner dan 70,43% pada kelas kontrol; (3) Indeks N-gain kelas eksperimen sebesar 0,77 berkategori tinggi dibandingkan kelas kontrol sebesar 0,70 berkategori sedang; (4) Penerapan model problem based learning berbasis pendekatan saintifik pada kelas eksperimen efektif meningkatkan penguasaan konsep siswa dengan post-test dan N-gain sig. (2-tailed) < 0,05, selanjutnya efektif untuk diterapkan pada kelompok siswa berkemampuan tinggi dan sedang; (5) Penerapan model problem based learning berbasis pendekatan saintifik memiliki tanggapan baik dengan persentase 75,16%.
Kata kunci
Model Problem Based Learning, Pendekatan Saintifik, Penguasaan Konsep, Kelarutan dan Hasil Kali Kelarutan
 
Publisher LPPM Universitas Negeri Jakarta
 
Date 2018-12-27
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://journal.unj.ac.id/unj/index.php/jrpk/article/view/10290
10.21009/JRPK.082.01
 
Source JRPK: Jurnal Riset Pendidikan Kimia; Vol 8 No 2 (2018): JRPK - Jurnal Riset Pendidikan Kimia, Volume 8 Nomor 2 (2018); 60 - 69
2597-8772
2252-5378
10.21009/JRPK.082
 
Language ind
 
Relation http://journal.unj.ac.id/unj/index.php/jrpk/article/view/10290/6691
 
Rights Copyright (c) 2018 Author(s)
https://creativecommons.org/licenses/by/4.0/
 

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