ThesisOpen AccessMetadata saja
2025•Skripsi, Thesis, Disertasi, dan Tugas Akhir
Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Problem Based Learning (PBL) terhadap keterampilan berpikir kritis matematis siswa di kelas VIII SMPN 2 Pulau Bunyu. Penelitian ini menggunakan Quasi Eksperimen. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII SMPN 2 Pulau Bunyu tahun ajaran 2024/2025. Teknik pengambilan sampel dilakukan dengan teknik sampling jenuh sehingga diperoleh sampel pada penelitian ini 63 siswa yaitu 32 siswa kelas VIII-A sebagai kelas kontrol dan 31 siswa kelas VIII-B sebagai kelas eksperimen. Pengumpulan data keterampilan berpikir kritis matematis menggunakan tes yaitu pretest dan posttest yang masing-masing terdiri dari 5 soal uraian dengan soal yang berbeda. Data penelitian dianalisis dengan teknik analisis deskriptif, uji Independent Sample T-Test dan uji N-Gain Score. Hasil penelitian menunjukkan bahwa terdapat pengaruh model pembelajaran Problem Based Learning (PBL) terhadap keterampilan berpikir kritis matematis siswa di kelas VIII SMPN 2 Pulau Bunyu, hal ini sesuai dengan hasil perhitungan uji Independent Sample T-Test diperoleh nilai 𝑡 ℎ𝑖𝑡𝑢𝑛𝑔 : 1,950 > 𝑡 𝑡𝑎𝑏𝑒𝑙 : 1,67022 pada taraf signifikansi 5%. Kemudian dilakukan uji lanjut menggunakan uji N-Gain Score diperoleh nilai rata-rata untuk kelas eksperimen sebesar 0,58 lebih tinggi dibandingkan nilai rata-rata untuk kelas kontrol sebesar 0, 32. Hasil ini diperkuat dengan nilai rata-rata hasil tes keterampilan berpikir kritis matematis pada kelas yang menerapkan model pembelajaran Problem Based Learning (PBL) lebih tinggi dibandingkan dengan rata-rata hasil tes keterampilan berpikir kritis matematis pada kelas yang menerapkan model pembelajaran konvensional. Dengan demikian disimpulkan bahwa terdapat pengaruh model pembelajaran Problem Based Learning (PBL) terhadap keterampilan berpikir kritis matematis siswa di kelas VIII SMPN 2 Pulau Bunyu. This study examines the impact of the Problem-Based Learning (PBL) model on students' mathematical reasoning and critical thinking skills in eighth grade at SMPN 2 Pulau Bunyu. A quasi-experimental design was employed, with the population comprising all eighth-grade students at SMPN 2 Pulau Bunyu in the 2024/2025 academic year. A total sampling technique was used, resulting in a sample of 63 students, consisting of 32 students in class VIII-A as the control group and 31 students in class VIII-B as the experimental group. Data were collected through preliminary and final assessments comprising five open-ended mathematical problems. The data were analyzed using descriptive statistics, an independent sample t-test, and an N-gain score test. The results indicate that the PBL model significantly affected students' mathematical reasoning and critical thinking skills. The independent sample t-test showed a statistically significant difference between the experimental and control groups (t = 1.950, p 0.05). Additionally, the N-gain score analysis revealed that the experimental group (0.58) outperformed the control group (0.32), indicating a moderate improvement in mathematical reasoning. Furthermore, students in the PBL-based classroom consistently demonstrated higher post-test scores than those taught using conventional instructional methods. These findings suggest that Problem-Based Learning (PBL) is a practical pedagogical approach for fostering students' mathematical reasoning, problem-solving abilities, and critical thinking skills in secondary education.
ThesisOpen AccessMetadata saja
2022•
This study investigated the effect of the flipped classroom learning model on students’ critical thinking skills in science-biology during the pandemic for class VIII at SMP Negeri 5 Tarakan. This research was conducted in the even semester of the 2021/2022 academic year at Tarakan 5 Public Middle School. This type of research was quasi-experimental with a pretest-posttest control design. The research population was all students in class VIII at SMP Negeri 5 Tarakan and used a purposive sampling technique to select the samples. The research sample was class VIII-A and class VIII-C consisting of 30 studentsfor each class so the total sample was 60. The instrument of this research was a test divided into ten questions describing critical thinking related to the material of the human excretory system. The Independent Sample Test obtained the result with a significance value of 0,000, less than 0,05, meaning that Ha is accepted, and H0 is rejected. There were differences in learning outcomes for the experimental class applying the Flipped Classroom model and the control class with the Problem Based Learning model, wich had an average N-Gain value in the experimental class of 54% and 32% in the control class. This showed that the Flipped Classroom learning model had an effect on the critical thinking skills of class VIII students of SMP Negeri 5 Tarakan.
ThesisOpen AccessMetadata saja
2022•
Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Problem Based Learning (PBL) terhadap keterampilan berpikir kritis siswa kelas VIII SMP Negeri 3 Tarakan. Penelitian ini dilaksanakan pada semester genap tahun ajaran 2021/2022 di SMP Negeri 3 Tarakan. Jenis penelitian ini adalah kuasi eksperimen dengan desain penelitian Pretest-Posttest nonequivalent Control Group Design. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 3 Tarakan. Instrumen penelitian ini adalah soal tes yaitu berjumlah sepuluh soal uraian berpikir kritis terkait materi sistem pernapasan. Sampel penelitian adalah kelas VIII-1 dan kelas VIII-9 yang terdiri dari 32 siswa setiap kelas dengan metode pengambilan sampel yaitu purposive sampling. Data di analisis menggunakan uji Wilcoxon Mann-Whitney, diperoleh hasil dengan nilai signifikansi 0,003, lebih kecil dari 0,05, maka Ha diterima dan H0 ditolak. Hal ini menunjukkan bahwa model pembelajaran Problem Based Learning (PBL) berpengaruh terhadap keterampilan berpikir kritis siswa kelas VIII SMP Negeri 3 Tarakan. Abstract: This study sought to ascertain if the problem based learning (PBL) instructional paradigma had an effect on the eighth graders critical thinking abilities at the SMP Negeri 3 Tarakan. This study was conducted at SMP Negeri 3 Tarakan during the even semester of the 2021-2022 academic year, This type of research was quasi-experimental with pretest-posttest nonequivalent Control Group Design. The population in this study were all eighth grade students of SMP Negeri 3 Tarakan Purposive sampling was used to choose the research sample, which included 32 students from classes VIII-I and VIII-9. The Wilcoxon Mann-whitney test was used to analyze the data, and when the findings were obtained with a significance value of 0.003, less than 0.05, Ha was accepted and H0 was rejected. This shows that the Problem Based Learning (PBL) learning model had an effect on the critical thinking skills of eighth grade students of SMP Negeri 3 Tarakan.
ThesisOpen AccessMetadata saja
2021•Skripsi, Thesis, Disertasi, dan Tugas Akhir
Penelitian ini bertujuan untuk mengetahui pengaruh penerapan strategi pembelajaran aktif Question Student Have terhadap berpikir kritis siswa pada tes pertama, kedua, ketiga dan keempat sebelum dan setelah pembelajaran. Jenis penelitian ini adalah eksperimen semu dengan desain penelitian time series. Sampel penelitian adalah kelas X IPA 1 Muhammadiyah Boarding School Tarakan dengan metode pengambilan sampel purposive sampling. Hasil penelitian dengan menggunakan analisis uji T sampel berpasangan diperoleh hasil dengan nilai signifikan 0,000. Jika sig (2- tailed) 0,05 maka Ha diterima dan Ho ditolak. Hal ini menunjukkan bahwa terdapat perbedaan yang signifikan antara tes pertama, kedua, ketiga dan keempat sebelum dan setelah pembelajaran question student have berpengaruh terhadap kemampuan berpikir kritis siswa The research objective was to investagate the influence of active learning Question Student Have (QSH) strategy toward critical thinking of first-grade student of Muhammadiyah Boarding School of Tarakan on first, second, third, and fourth test before and after learning. The research design was quasi-experimental with the design of study time series. The research sample was taken in SMA Muhammadiyah Boarding School. The result revealed that T-test analysis of paired samples obtained a significant value of 0.000. if the sig (2-tailed) 0.05 then Ha was accepted and Ho was rejected. It indicated that there were significant differences between the test first, second, third, and fourth before and after learning using question student have a strategy on student critical thinking skills.
