Electronic Theses and Dissertation

Tia Novenda Sari: Penerapan Model Group Investigation untuk Meningkatkan Kemampuan Berpikir Kritis dan Keterampilan Proses Sains pada Materi Sistem Sirkulasi di SMA Negeri Meulaboh

Pembimbing I. Dr. Khairil, M.Si Pembimbing II. Dr. Andi Ulfa Tenri Pada, S.Pd. M.Pd


ABSTRAK
Kemampuan berpikir kritis peserta didik di SMA Negeri Meulaboh belum memadai, ditandai dengan hasil belajar peserta didik yang sebagian besar (67%) di bawah KKM.
Penelitian ini bertujuan untuk mengetahui perbedaan kemampuan berpikir kritis peserta didik setelah diterapkan model group investigation pada materi sistem sirkulasi, dan untuk mengetahui korelasi kemapuan berpikir kritis terhadap keterampilan proses sains peserta didik pada materi sistem sirkulasi. Desain penelitian yang digunakan yaitu pretest- postest control group design. Populasi dalam penelitian ini adalah seluruh peserta didik kelas XI MIA di SMA Negeri Meulaboh tahun pelajaran 2019/2020 yang terdiri dari 185 peserta didik. Teknik pengambilan sampel menggunakan purposive sampling yang berjumlah 126 peserta didik. Instrumen yang digunakan untuk mengukur kemampuan berpikir kritis yaitu soal pilihan berganda dan essay berupa soal Pretest dan Posttest dan untuk mengukur keterampilan proses sains menggunakan lembar observasi. Analisis data menggunakan uji N-gain, uji paired sample t-tes dan independent sample t-tes, pada taraf signifikan 0,05. Hasil penelitian menunjukkan: nilai ? ? 0,05, maka terdapat perbedaan kemampuan berpikir kritis peserta didik setelah diterapkan model group investigation pada materi sistem sirkulasi, selain itu korelasi positif antara kemampuan berpikir kritis dengan Keterampilan proses sains peserta didik pada materi sistem sirkulasi di kelas XI SMA Meulaboh, sebesar 0,473 yang tergolong dalam korelasi sedang.

Kata Kunci: Model group investigation, Kemampuan Berpikir Kritis, Keterampilan Proses Sains











Tia Novenda Sari: The application of the Group Investigation Model to Improve Critical Thinking Skills and Science Process Skills in the Circulation System Concept at SMA Negeri Meulaboh

Suverpisor I. Dr. Khairil, M.Si Suverpisor II. Dr. Andi Ulfa Tenri Pada, S.Pd. M.Pd


ABSTRAK

The critical thinking ability of students at SMA Negeri Meulaboh are inadequate, as indicated by the learning outcomes of students, most of which (67%) are below the KKM. This study aims to determine the differences in students 'critical thinking ability after the application of the group investigation model on the circulation system material, and to determine the correlation of critical thinking ability towards students' scientific process skills on the circulation system material. This research is quantitative with a experimental research approach. The research design used was the pretest-posttest control group design. The population in this study were all students of class XI MIA at Meulaboh State High School for the 2019/2020 academic year consisting of 185 students. The sampling technique used purposive sampling, totaling 126 students. The instrument used to measure critical thinking ability is multiple choice questions and essays in the form of pretest and posttest questions and to measure science process skills using observation tools. Data analysis, N-gain test, paired sample t-test and independent sample t-test, at a significant level of 0.05. The results showed: the value of ? ? 0.05, there was a difference in students 'critical thinking abilities after the group investigation model was applied to the circulation system material, besides that there was a positive correlation between critical thinking ability and students' scientific process skills on the circulation system material in class XI SMA Meulaboh, amounting to 0.473 which belongs to a moderate correlation.

Kata Kunci: Group investigation model, Critical Thinking Ability, Science Process Skills

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