PENGARUH MODEL GROUP INVESTIGATION TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VIII SEMESTER GANJIL UPT SMP NEGERI 14 BANDAR LAMPUNG TAHUN PELAJARAN 2022/2023
Keywords:
group investigation, mathematical problem solvingAbstract
The low mathematical problem-solving ability of students is a problem that is studied in the study of class VIII UPT SMP Negeri 14 Bandar Lampung students. Based on this, this research was carried out with the aim of knowing the effect of the Group Investigation model on the mathematical problem-solving abilities of eighth grade students in the odd semester of UPT SMP Negeri 14 Bandar Lampung in the 2022/2023 academic year. The method used in this research is the experimental method. The population in this study were all eighth-grade students in the odd semester of UPT SMP Negeri 14 Bandar Lampung for the academic year 2022/2023, with 2 classes selected using cluster random sampling technique. The class is VIII A as the experimental class and class VIII
B as the control class. The data was collected by using a test technique in the form of an essay as many as 5 questions that have been declared valid and reliable. Hypothesis testing in this study using ttest. Based on the results of hypothesis testing using ttest obtained thit = 4,82. From the t distribution table at a significant level of 5%, it is obtained that tdaf =1,67 means that thit > tdaf is 4,82 > 1,67, it can be concluded that "the average mathematical problem solving ability of students who apply the Group Investigation learning model is higher than the average mathematical problem solving ability of students who apply the Conventional model to the odd semester VIII students of UPT SMP Negeri 14 Bandar Lampung in the academic year 2022/2023”, thus there is an effect of the Group Investigation model on students' mathematical problem solving abilities.
References
Budiyanto, Moch. A.K. (2016). Sintaks 45 Metode Pembelajaran dalam Student Centered Learning (SCL). Malang: Universitas Muhammadiyah Malang.
Hasanah, U dkk. (2019). Pengaruh Penerapan Model Pembelajaran Investigasi Kelompok Terhadap Kemampuan Pemecahan Masalah Matematika Siswa Kelas VIII SMP. Alauddin Journal Of Mathematics Education. 64-71.
Hendriana, H., Rohaeti, E.E. and Sumarmo, U. (2017). Hard Skills dan Soft Skills Matematik Siswa. Bandung: Refika Aditama.
Lestari, K.E. & Yudhanegara, M.R. (2018). Penelitian Pendidikan Matematika. Bandung. Refika Aditama.
Mendrofa, R.N. (2018). Pengaruh Model Pembelajaran Kooperatif Tipe Group Investigation Terhadap Pemahaman Konsep dan Kemampuan Pemecahan Masalah Matematis Siswa Kelas VII SMPS Pembda 2 Gunungsitoli. Jurnal Review Pendidikan dan Pengajaran. 1(1), 139-146.
Ningsih, F. (2019). “Pengaruh Model Pembelajaran Group Investigation Terhadap Kemampuan Pemecahan Masalah Siswa Kelas VIII MTSN Kabupaten Kerinci”. Jurnal Cendekia: Jurnal Pendidikan Matematika, 3(2), 351-362.
Saryantono, B & Noviyana, H. (2020). Pengaruh Strategi Practice Rehearsal Pairs Terhadap Kemampuan Pemecahan Masalah Matematika Siswa Kelas VIII SMP Al Azhar. EPSILON (Jurnal Pendidikan Matematika STKIP PGRI Bandar Lampung). 2(1), 17-26.
Shoimin, A. (2014). 68 Model Pembelajaran Inovatif dalam Kurikulum 2013. Yogyakarta: Ar-Ruzz Media.
Slavin, Robert A. (2005). Cooperative Learning. Bandung: Nusamedia.
Tunnajach, N. F., & Gunawan, G. (2021). Analisis Kemampuan Pemecahan Masalah Matematis Siswa dalam Menyelesaikan Soal Berbasis Kontekstual pada Materi Trigonometri Ditinjau dari Perbedaan Gender. MATH LOCUS: Jurnal Riset dan Inovasi Pendidikan Matematika, 2(1), 7-14.
