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Problem-Based Learning through Reading, Questioning, and Answering (PBLRQA): A Teaching Module to Improve Critical Thinking and Science Communication Skills in High School Students Louto, Fadlun Fadilawati; Mohammad Jamhari; Achmad Ramadhan
Jurnal Penelitian dan Pengembangan Pendidikan Vol. 9 No. 1 (2025): April
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jppp.v9i1.89407

Abstract

Students' ability to identify problems in the PBL syntax is still weak, which affects their critical thinking and communication skills. This has become an issue that requires a solution. This study aims to develop a PBLRQA teaching module to improve senior high school students’ critical thinking and scientific communication skills. The type of research used is R&D (Research and Development) with a 4D development model. The research subjects were 30 tenth-grade students from class X9. The instruments used included validation sheets, essay questions to assess critical thinking skills, and observation sheets to assess communication skills. Data analysis was conducted using percentage formulas and the N-gain test. The results showed a significant difference in the average scores of students’ critical thinking skills before and after the treatment. The average pretest score was 11.3, and after the treatment using the PBLRQA teaching module, the average posttest score increased to 85.16. The N-gain score was 0.83, categorized as high, indicating that the PBLRQA teaching module was effective. The conclusion of this study is that the PBLRQA teaching module has been proven effective in improving students’ critical thinking and scientific communication skills. The implication of this research is that the developed PBLRQA teaching module can be used as a learning tool in biology classes, particularly for the topic of viruses.
The Effect of Project Based Addictive Substance Learning on Critical Thinking Skills of Junior High School Students Safitri, Erica Meilia; Sudarti, Sudarti; Handayani, Rif’ati Dina; Jamhari, Mohammad; Haeruddin, Haeruddin
Jurnal Pendidikan MIPA Vol 24, No 4 (2023): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstract: Critical thinking is one of the 4C competencies that is important for students to master to support their success in the learning process. The purpose of this research is to determine the effect of the project based learning (PjBL) model on students' critical thinking skills. The method used is purposive sampling. This type of research is quasi-experimental with a nonequivalent control group design (pre-test and post-test). The average results of the two samples are known through the independent sample t-test. The difference in critical thinking skills scores between the control class and the experimental class will be known through a parametric independent sample t-test with a sig value. > 0.05 which means homogeneous. If tcount > table resulting from the right-sided t-test then it can be said that HO is rejected and Ha is accepted, meaning the learning model used in the experimental class has a significant influence. In the research that has been carried out, it is known that the project based learning (PjBL) model has a significant effect on students' critical thinking skills, which is known through the difference in the average scores of the control class and the experimental class. Keywords: critical thinking skills, learning model, PjBL model. Abstrak: Berpikir kritis menjadi salah satu kompetensi 4C yang penting untuk dikuasai peserta didik agar menunjang keberhasilannya dalam proses pembelajaran. Tujuan dilakukannya penelitian ini untuk mengetahui pengaruh model pembelajaran project based learning (PjBL) terhadap keterampilan berpikir kritis peserta didik. Metode yang digunakan yaitu purposive sampling. Jenis penelitian ini yaitu kuasi eksperimen dengan desain penelitian nonequivalent control group design (pre-test dan post-test). Hasil rata-rata kedua sampel diketahui melalui independet sample t-test. Perbedaan skor keterampilan berpikir kritis antara kelas kontrol dan kelas eksperimen akan diketahui melalui uji parametrik independent sample t-test dengan nilai sig. > 0,05 yang berarti homogen. Jika thitung > tabel yang dihasilkan dari uji t-pihak kanan maka dapat dikatakan bahwa HO ditolak dan Ha diterima berarti model pembelajaran yang digunakan di kelas eksperimen memiliki pengaruh yang signifikan. Pada penelitian yang sudah dilakukan diketahui bahwa model pembelajaran project based learning (PjBL) berpengaruh dengan signifikan terhadap keterampilan berpikir kritis peserta didik yang diketahui melalui perbedaan rata-rata nilai kelas kontrol dan kelas eksperimen.  Kata kunci: model pembelajaran, model PjBL, keterampilan berpikir kritis. DOI: http://dx.doi.org/10.23960/jpmipa/v24i4.pp859-866
Investigating Junior High School Students' Scientific Thinking Ability in Understanding Global Warming Nur Rahmah; Mohammad Jamhari; Ratman; Sulastriani
DIROSAT: Journal of Education, Social Sciences & Humanities Vol. 3 No. 2 (2025): Innovation in Education and Social Sciences Research
Publisher : Perkumpulan Dosen Fakultas Agama Islam Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58355/dirosat.v3i2.140

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Science education in junior high school plays a crucial role in developing students' scientific thinking, particularly in understanding global issues like global warming. This study aims to assess the scientific thinking abilities of seventh-grade students at three state junior high schools in Palu City, using a descriptive approach and a test based on seven aspects of scientific thinking as defined by García-Carmona (2023). The findings reveal that approximately 80% of students showed progress in scientific thinking, with 12% achieving a competent level and 8% remaining in the beginner category. However, their understanding of scientific information from discourse and graphics averaged only 26%. Overall, students demonstrated developing scientific thinking skills, which could enhance their comprehension of scientific concepts, especially related to everyday experiences and environmental issues shared on social media. The role of teachers is essential in guiding students to understand and critically evaluate scientific information, such as articles on global warming. The study recommends developing interactive, problem-based teaching strategies to further improve students' scientific thinking skills. Future research should explore the role of media technology, teachers, and parents in supporting the development of scientific thinking regarding natural phenomena to advance science education in Palu and its surrounding areas.
The Impact of Problem Based Learning with Mind Mapping on Learning Outcomes in Ecosystem Lesson Jamhari, Mohammad; Windarsih, Yulia; Trianto, Manap
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.11284

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Education plays a critical role in shaping the cognitive, affective, and psychomotor development of students. In the 21st century, students are expected not only to acquire knowledge but also to develop the ability to think critically, solve problems, and apply concepts in real-life situations. For this reason, this study aims to determine the effect of applying the problem-based learning model assisted by mind mapping on student learning outcomes in ecosystem lesson. This research employed a quasi-experimental approach using the Pretest-Posttest Non-Equivalent Control Group Design, involving both control and experimental classes. The study population included all tenth-grade students at SMA Negeri 1 Biau. Through purposive sampling, four classes were selected, totaling 121 students. Learning outcomes data were collected using a test instrument comprising 30 multiple-choice questions. The data were analyzed using the Mann-Whitney statistical test at a significance level of 0.05. The analysis results revealed that the use of the problem-based learning model combined with mind mapping had a statistically significant impact on student learning outcomes, with a p-value less than 0.05 (0.000 < 0.05). Therefore, it can be concluded that the integration of mind mapping within the problem-based learning model has a positive influence on learning achievement. These findings suggest that this instructional approach is effective and can be implemented in lessons focused on ecosystem.
Pengaruh Model Pembelajaran Project Based Learning Terhadap Kemampuan Berpikir Kritis dan Kreativitas Pada Mata Pelajaran Biologi di SMAN 4 Palu Aisyah; Jamhari, Mohammad; Buntu, Amalia; Rafiqa; Laenggeng , Abd. Hakim; Zainal, Syech
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i3.17132

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This study aims to determine the effect of the Project Based Learning learning model on critical thinking skills and creativity in biology subjects at SMA Negeri 4 Palu. This type of research is quantitative with a quasi-experimental type. The population in this study was 400 people and the sample in this study was 70 people. Sampling was done by purposive sampling, and the research sample was 2 classes consisting of class XC and XJ. The data collection technique in this study was using a test in the form of a Post-test and observation sheet. Data analysis used prerequisite tests, namely, normality tests and homogeneity tests and hypothesis testing using independent sample-t tests. The results of the study indicate that (1) students' critical thinking skills had a significant average score in class XJ as the experimental class, namely 85.66, and class XD as the control class, namely 77.14. (2) The results of observing students' creativity in the experimental class yielded a score of 84.66, with 80-100% falling into the “very creative” category, while the control class scored 76.14, with 61-80% falling into the “creative” category. (3) The Project-Based Learning (PBL) model has a significant impact on critical thinking skills and creativity in biology lessons at SMA Negeri 4 Palu. This is evidenced by the t-test results, which show a significance value of 0.00 < 0.05.
Pengaruh Model Project Based Learning Berbasis STEM Terhadap Keterampilan Berpikir Kreatif dan Motivasi Belajar Peserta Didik Pada Mata Pelajaran Biologi di SMAN 4 Palu Palangi, Julmita; Jamhari, Mohammad; Agni, Raya; Laenggeng, Abd Hakim; Fardha, Rizka; Febriawan, Aan
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i3.17434

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This study aims to determine the effect of the STEM-based project-based learning (PjBL) model on students' creative thinking skills and learning motivation in biology at SMA Negeri 4 Palu. The study used a quantitative approach with a quasi-experimental design, the population in this study were all grade X students of SMA Negeri 4 Palu in the 2024/2025 academic year consisting of 12 study groups with a total of 400 students. The sample was determined through purposive sampling, consisting of an experimental class (n=33) receiving PjBL-STEM learning and a control class (n=33) with conventional learning. Data were collected through creative thinking skills tests and learning motivation observation sheets, then analyzed using normality tests, homogeneity tests, and independent samples t-tests. The results showed that the PjBL-STEM model had a significant effect on improving creative thinking skills (Sig. = 0.023 <0.05) and learning motivation (Sig. = 0.000 <0.05). This finding confirms that the integration of the STEM approach in PjBL not only strengthens the cognitive but also the affective aspects, so that it can be used as a strategic alternative in developing a biology curriculum to foster 21st-century competencies.
Penerapan Pembelajaran Problem Based Learning (PBL) dalam Meningkatkan Kemampuan Pemecahan Masalah Siswa Kelas X M6 di SMA Negeri 5 Palu Putri, Riska Ananta; Jamhari, Mohammad; Bialangi, Mursito S.; Shamdas, Gamar B.N.; Lilies; Febriani, Vita Indri
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i3.17478

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This study aims to improve students' problem-solving skills through the application of Problem-Based Learning (PBL) at SMA Negeri 5 Model Palu. This study is a classroom action research (CAR) with two cycles, each consisting of two meetings, conducted in the even semester of the 2024/2025 academic year. The research subjects were 28 students from class X M6 at SMA Negeri 5 Palu, consisting of 10 male and 18 female students. The research instruments used were student problem-solving ability tests and observation sheets of teacher and student activities. The learning tools used consisted of teaching modules using the Problem-Based Learning (PBL) model and student worksheets (LKPD). The data were analyzed based on the results of observations of teacher and student activities and problem-solving ability tests. The results showed that applying the Problem-Based Learning (PBL) model could improve students' problem-solving abilities, with an average score of 73.04 with a percentage of 71% (incomplete) in cycle I to 87.50 with a percentage of 96% (complete) in cycle II. Applying the Problem-Based Learning (PBL) model also increased teacher teaching activities and student learning activities. Thus, the application of the Problem-Based Learning (PBL) model can improve the problem-solving skills of grade X M6 students at SMA Negeri 5 Palu.
The Relationship Between Interest in Learning and Critical Thinking Skills of Junior High Students in Science Learning Ramadani, Ersa; Tiro, Frelyana; Haeruddin, Haeruddin; Jamhari, Mohammad; Afadil, Afadil
Jurnal Akademika Kimia Vol. 14 No. 1 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i1.pp34-39

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This study aims to determine the relationship between interest (X1) and critical thinking skills of seventh-grade students in science learning at SMP Negeri 4 Tanantovea. This study is a descriptive correlational study. The research sample was selected using total sampling, comprising all seventh-grade students from two classes, totalling 36 students. The instruments used in this study were a questionnaire on students' interest in learning and a critical thinking test. The questionnaire on interest in learning and the critical thinking test were subjected to content and construct validity tests. A field trial was conducted with 36 students, comprising 19 female and 17 male students. The instruments used in this study were a critical thinking test and a questionnaire on students' learning interests. The questionnaire on learning interest consisted of 20 statements, while the critical thinking test consisted of 10 essay questions. All instruments underwent content validity testing by experts, empirical validity testing using Pearson product-moment correlation, and reliability testing using Cronbach's Alpha. Prerequisite tests were conducted using the Shapiro-Wilk normality and linearity tests with SPSS 22 software. The study results in Grade VII of junior high school concluded a relationship between interest and critical thinking ability, with a correlation value of 0.402 and a regression equation of Ŷ = Y = 57.813 + 0.165X1. Furthermore, based on the calculated r value of 0.442, the criteria for the strength of the relationship between the variables of interest and critical thinking indicate a fairly strong relationship.
Penggunaan Media Video Animasi Untuk Meningkatkan Hasil Belajar IPA Pada Kelas IX A di SMP Negeri 1 Balaesang Aulia, Azni; Lilies; Febriani, Vita Indri; Febriawan, Aan; Rafiqah; Jamhari, Mohammad
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i3.17665

Abstract

This research aims to improve student learning outcomes in Biology subjects through the use of animated video media in improving science learning outcomes of grade IX A students at SMP Negeri 1 Balaesang. The method used is this research is a Classroom Action Research (PTK) design with four stages, namely planning, implementation, teacher observation, and student observation. The research subjects amounted to 28 students. The data collection instruments in this study used teacher observation sheets, student observation sheets, and posttests. The research will be conducted in July 2025. Based on the results of the study, it shows that the use of animated video media in science subjects has proven to significantly improve student learning outcomes. This is aimed at the results of data analysis that has been carried out in the implementation of the Iyang cycle, showing that the level of student learning outcomes of learning completeness reached 67%, while in cycle II it increased to 100%. In addition, students' responses to learning using animation media were very positive. Thus, it can be concluded that animated video media is effective in helping to understand science material and increasing student involvement in the learning process.
Identifikasi Jenis Tanaman di Kawasan Lingkungan SMA Negeri 6 Sigi dan Pemanfaatannya Sebagai Media Pembelajaran Grasela, Nadia; Budiarsa , I Made; Jamhari, Mohammad
Journal of Biology Science and Education Vol. 13 No. 1 (2025): Juni
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jbse.v13i1.5062

Abstract

Penelitian ini bertujuan mengidentifikasi jenis tanaman yang berada di kawasan lingkungan SMA Negeri 6 Sigi dan menentukan kelayakan media pembelajaran buku saku. Metode dalam dalam penelitian ini menggunakan jelajah dengan menghasilkan sampel melalui koleksi bebas. Jenis penelitian ini mengunakan penelitian deskriptif. Berdasarkan hasil penelitian yang dilakukan diperoleh 25 jenis tanaman dimana terdapat 14 tanaman hias diantaranya Kembang sepatu ( Hibiscus rosa-sinensis L.), Kayu hitam ( Diospyros celebica Bakh. f. ), Palem Merah ( Cyrtostachys renda Blume ), Bunga Teratai ( Nymphae alba L.), Bunga Bambu Air ( Equisetum hyemale L.), Bunga Janda Bolong ( Monstera adansonii Schott), Pucuk Merah (Syzygium myrtifolium Walp.), Bunga pukul 9 ( Portulaca grandiflora Hook.), Bunga Peace Lily atau bunga kobra (Spathiphyllum spp.), Daud Bahagia (Dieffenbachia seguine Schott), Bunga kertas ( Bougainvillea spinosa Comm. ex Juss.), Daun Beludru ( Episcia cupreata L.), Anggrek Pensil (Papilionanthe hookeriana Rchb.f.) dan Anggrek Kelapa ( Maxillaria tenuifolia Lindl.). 8 jenis tanaman pangan Pisang (Musa paradisiaca L.), Buah Naga Merah (Hylocereus polyrhizus ssp.), Durian (Durio zibethinus Murr.), Rambutan (Nephelium lappaceum L.), Mangga (Mangifera indica L.), Pandan (Pandanus amarylifolius Roxb) dan Coklat (Theobroma cacao L.) Jambu Biji (Psidium guajava L). 3 jenis tanaman obat Kumis kucing (Orthosiphon aristatus Miq.), Jambu Biji (Psidium guajava L.) dan Kemangi (Ocimum sanctum Linn). Hasil validasi media pembelajaran dalam bentuk buku saku diperoleh nilai 90,8%, berdasarkan hasil tersebut dapat dikategorikan bahwa buku saku sangat layak digunakan sebagai media pembelajaran.
Co-Authors A.A. Ketut Agung Cahyawan W Abd Hakim Laenggeng, Abd Hakim Abd Rauf Abdul Rahman Abdul Rahman Achmad Ramadhan Achmad Ramadhan Adianingsih Adianingsih Adianingsih, Adianingsih Afadil Agus Rahmatullah Ahsyaban Ainun Sampede Aisyah Alivinda Aulia Safira Musyarofah Amalia Buntu Amiruddin Kade Amiruddin Kasim Amram Rede, Amram Amran Rede Amran Rede Andi Tanra Tellu Angelia, Helena Aprilianti, Wanty Ardiansyah Arham Arham, Arham Ashari, Abdul Asmara, Dudun Candra Asmawir Astija Aulia, Azni Ayu - Lestari, Ayu - Aziza, Nurul Inaya Azza Liarista Anggraini Azzahra, Fitri Azzajjad, Muhammad Fath Bialangi, Mursito S. Binti Non Shamdas, Gamar Budiarsa , I Made Bustamin Bustamin Bustamin Bustamin Datubaringan, Jein Daud Karel Walanda Dewi Purwasi Samaela Dewi Satria Ahmar Dewi Tureni Dewi, Eka Erica Meilia Safitri Fadila, Nurul Faisah, NUrul Fatmah Dhafir Fatrah, Fatrah Febriani, Vita Indri Febriawan, Aan Fhauzan, Fuad Finta Amalinda Fitri Azzahra Gaffar, Musdalifa Gamar Binti Non Shamdas Grasela, Nadia Hadi Pramono Haeruddin Haeruddin Haeruddin Haeruddin Haeruddin Haeruddin Haeruddin Haerudin Haerudin Handayani, Rif’ati Dina Hasan, Isharyadi Hayyatun Mawaddah Hiska, Hiska Hj. Musdalifah Nurdin humaira Humaira I Made Budiarsa I Nengah Kundera Irda Irda Irma Wati Irsan Irsan Jamaludin M Sakung Jumalia Jumalia Kairupan, Youla Fristin Kusumaningrat Laenggeng , Abd. Hakim Laksono Trisnantoro Lamuke, Siti Rosima I. Latifa, Latifa Lestari M.P Alibasyah Lilies Lilies Lilies Lilies Lilies Lilies Lilies Lilies Lilies N Tangge Lismawati Sahib Louto, Fadlun Fadilawati Lusiana Lusiana M. Thahir, Faizah Manap Trianto Mardhiyah, Wa Ode Sitti Marungkil Pasaribu Masriani . Masyita Masyita Maulidiyah, Arum Mestawaty Mestawaty Moh Fadil Moh Tri Ramadhan Moh. Nasihin Muchlis L. Djirimu Muhammad Zaky Munifa, Siti Murniati . Mursito S. Bialangi MUSLIMIN Musripan Abd Muis N Tangge, Lilies N. Tangge, Lilies Ni Gusti Ayu Galuh Candra Kirana Nur Fahmi Safrianti Nur Rahmah Nurlira Mei Widhiyanti Nursetya, Kartini Palangi, Julmita Palewang, Yuliana Y. Putri Rachmawati, Putri Putri, Riska Ananta Rafia Rafiqa RAFIQA RAFIQA, RAFIQA Rafiqah Rafiqah, Rafiqah Rahmadani, Nurlaila Wulan Ramadani, Ersa Ramadhan, Moh Tri Ramadhanil Ramadhanil Ramayana Ratman Ratman Ratman Ratman Raya Agni Renold Renold Reskywanti, Reskywanti Resmin Djafar Rif’ati Dina Handayani Rif’ati Dina Handayani Rif’ati Dina Handayani Ritman Ishak Paudi Ritman Ishak Paudi Ritman Paudi Rizka Fardha Rukmana Rukmana Rukmana, Rukmana Safarni, Safarni Safitri, Erica Meilia Safrianti, Nur Fahmi Salim Mulyadi Koolang Samsurizal, M. Sulaeman Sarnan, Etry Melatry Shamdas, Gamar B.N. Sintiawati, Ani Sri Wahyuni Sri Wahyuni Sudarti Sudarti Sudarti Sudarti Sudarti Sudarti Sulastriani Sunarti Sunarti Supriyatman, Supriyatman Syamsul Arifin Syarifah Hadijah Syech Zainal Tasriah, Tasriah Tiro, Frelyana Tiwow, Vanny M. Wati, Irma Widyastuti Umar Widyawati, Dyah Windarsih, Yulia Yuniarti Zulaikhah Dwi Jayanti Zulham A. Ranya