ABSTRAK

Enik Kurniawati, 2019. Pengembangan Lembar Kerja Peserta Didik (LKPD)  Pada Pembelajaran IPA  Berbasis Pembelajaran Group Investigation  Untuk Melatih Keterampilan Berpikir Kritis Siswa SMP. Tesis, Program Studi Pendidikan Sains, Program Pascasarjana Universitas Negeri Surabaya, Pembimbing: (I) Prof .Dr. dr. Tjandrakirana, M.S., Sp. And. dan (II) Dr. Sifak Indana, M.Pd.  

Kata kunci: LKPD, Group Investigation, keterampilan berpikir kritis

Tujuan penelitian ini adalah untuk menghasilkan Lembar Kerja Peserta Didik (LKPD) berbasis pembelajaran Group Investigation untuk melatihkan keterampilan berpikir kritis siswa SMP yang layak berdasarkan validitas, kepraktisan, dan keefektifan. LKPD dikembangkan dengan disain penelitian 4-D yaitu Define, Design, Develop, dan Disseminate. Uji coba terbatas dilakukan pada 30 peserta didik. Validitas ditinjau dari hasil validasi RPP dan LKPD . Kepraktisan ditinjau dari keterlaksanaan RPP dan kendala-kendala  serta aktivitas peserta didik dalam pembelajaran, keefektifan ditinjau dari hasil pretest dan posttest keterampilan berpikir kritis dan angket respon peserta didik . Hasil validitas RPP kategori sangat valid dan reliabilitas sebesar 93 % , sedangkan validitas LKPD kategori sangat valid dan reliabilitas 93 %. Kepraktisan ditinjau dari keterlaksanaan pelaksanaan pembelajaran kategori sangat baik dan reliabilitas sebesar 98,88%, aktivitas siswa sangat antusias teramati saat proses pembelajaran berlangsung. Keefektifan ditinjau dari hasil pretest dan posttest bahwa sebelum dilakukan pembelajaran tidak satupun peserta didik yang mencapai ketuntasan, sedangkan setelah dilakukan uji coba sebanyak 3 kelas yaitu kelas IX A, IX C dan IX D, masing-masing kelas sebanyak 30 peserta didik. Pada kelas A dinyatakan 28 tuntas dan 2 tidak tuntas, kelas IX C  dinyatakan  27 tuntas dan 3 tidak tuntas dan kelas IX D 22  tuntas dan 8 tidak tuntas  Berdasarkan perhitungan  N-Gain  kelas IX A rata-rata 0,66, kelas IX C rata-rata 0,55 dan kelas  IX D hasil rata-rata 0,66 dengan  kriteria sedang. Respon peserta didik  kelas IX A, IX C dan IX D menunjukkan ketertarikan terhadap LKPD sebesar 91,69 %, 93,35 % dan 92,68 %  kategori sangat efektif. LKPD yang telah dikembangkan valid, praktis, dan efektif sehingga layak untuk melatihkan keterampilan berpikir kritis siswa SMP.

ABSTRACT

Enik Kurniawati, 2019. Development of Student Worksheets (LKPD) on Science Learning Based on Group Investigation Learning to Train Middle School Critical Thinking Skills. Tesis, Science Education Study Program, Surabaya State University Postgraduate Program, Supervisor: (I) Prof. Dr. dr. Tjandrakirana, M.S., Sp. And and (II) Dr. Sifak Indana, M.Pd.

Keywords: LKPD, Group Investigation, critical thinking skills

The purpose of this study is to produce a Student Investigation Worksheet (LKPD) based on Group Investigation learning to train the appropriate Junior High School students’critical thinking skills based on validity, practicality, and effectiveness. LKPD was developed with a 4-D research design namely Define, Design, Develop, and Disseminate. The limited trials were conducted with 30 students. Then, the validity is reviewed from the results of the validation of the RPP and LKPD. The practicality here is reviewed from the implementation of lesson plans (RPP) and the constraints also the activities of students in learning process, and the effectiveness is viewed from the results of the pretest and posttest critical thinking skills and student questionnaire responses. The results of the lesson plans (RPP) category validity are very valid and the reliability is 93%, while the LKPD category validity is very valid and the reliability is 93%. The practicality is reviewed based on the implementation of learning in the excellent category and reliability of 98.8%, the student activity is very enthusiastic. Then, the effectiveness is reviewed from the results of the pretest and posttest which before learning process, none of the students achieved completeness, IX A whereas after 30 trials were declared 28 was completed and 2  incomplete IX C  whereas after 30 trials were declared 27 was completed and 3 incomplete,  IX D whereas after 30 trials were declared 22 was completed and 8 incomplete based on the N-Gain calculation the average yield was 0.66, 0,55 and 0,66  with medium criteria. The student responses  IX A, IX C and IX D showed an interest in LKPD of 91,69 %, 93,35 % and 92.68% in the very effective category. LKPD that has been developed is valid, practical, and effective. So, it is appropriate to practice the critical thinking skills of junior high school students.