@mastersthesis{eprints68263,
           month = {Nopember},
           title = {PENGEMBANGAN MODEL PEMBELAJARAN GROUP INVESTIGATION (GI)
BERBANTU VIDEO BERORIENTASI PADA KEMAMPUAN BERPIKIR

KRITIS MATEMATIS SISWA},
          school = {UNIVERSITAS LAMPUNG},
          author = {1823021017 RENA SOVIANA},
            year = {2021},
             url = {http://digilib.unila.ac.id/68263/},
        abstract = {Salah satu penyebab rendahnya kemampuan berpikir kritis adalah penerapan model
pembelajaran yang kurang tepat. Siswa sulit menginterpretasi, menganalisis, mengevaluasi
dan menginferensi dari permasalahan matematika yang disajikan. Permasalahan tersebut
merupakan alasan dilakukannya penelitian ini. Tujuan dilakukannya penelitian ini adalah
untuk menghasilkan produk berupa sintaks/langkah model pembelajaran Group Investigation
(GI) berbantu video berorientasi pada berpikir kritis matematis siswa. Penelitian dan
pengembangan (research and development) ini mengikuti langkah-langkah Borg dan Gall.
Teknik pengumpulan data menggunakan observasi, wawancara, angket dan tes. Subjek
penelitian adalah siswa kelas VIII SMP Negeri 4 Natar tahun pelajaran 2020/2021. Hasil
penelitian menunjukkan bahwa (1) Model Group Investigation (GI) berbantu video memiliki
kategori valid dan praktis, dan (2) Model Group Investigation (GI) berbantu video efektif
untuk meningkatkan kemampuan berpikir kritis matematis siswa.

Kata kunci: Group Investigation (GI), video, berpikir kritis matematis.

One of the causes of low critical thinking skills was the application of an inappropriate
learning model. Students found it difficult to interpret, to analyze, evaluate and to infer the
mathematical problems presented. This problem is as reason to conduct this research. The
purpose of this research is to produce a product in the form of syntax/learning steps of the
Group Investigation (GI) learning model by video oriented to students' mathematical critical
thinking. This research and development followed the steps of Borg and Gall. Data collection
technique using observation, interview, questionnaire and test. The subjects of was research
class VIII students of SMP Negeri 4 Natar in the academic year 2020/2021. The resuls
showed that (1). Video-assisted Model Group Investigation (GI) design had valid and
practical categories, and (2). The design of the Video-assisted Group Investigation (GI)
Model was effective to increase students' mathematical critical thinking skills.
Keywords: Group Investigation (GI), video, mathematical critical thinking.}
}