https://ejournal.unib.ac.id/diksains <p align="justify">DIKSAINS is a peer-reviewed, open-access journal covering all aspect of science and science education (physics, physics education, chemistry, chemistry education, biology, biology education, computer science, environment science, nutrition and health science). We encourage scientist, lecturer, teacher and student to submit their original paper to the journal. DIKSAINS is managed by the Science Education Study Program of the Teaching and Education Faculty of Universitas Bengkulu, published in June and December a year by Unib Press. In December 2022, DIKSAINS got accreditation SINTA in Fifth Rank (SINTA 5) with <a href="https://drive.google.com/file/d/16VtdNwnxRY26S4Y-1PgHfnyQ6rpdrOVg/view">reference number 225/E/KPT/2022</a>. </p> <p align="justify"><a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&amp;1615177620&amp;1&amp;&amp;"><strong>e-ISSN 2775-9253</strong></a></p> Universitas Bengkulu en-US DIKSAINS : Jurnal Ilmiah Pendidikan Sains 2775-9253 <p align="justify">Author retains the copyright and grants the journal the right of first publication of the work simultaneously licensed under the Creative Commons Attribution-ShareAlike 4.0 License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal</p><p align="justify">Author is able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book) with the acknowledgement of its initial publication in this journal.</p><p align="justify">Author is permitted and encouraged to post his/her work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of the published work (See The Effect of Open Access).</p><p align="justify"> Creative Commons Attribution-ShareAlike (CC BY-SA)</p><p><a href="http://creativecommons.org/licenses/by-sa/4.0/" rel="license"><img src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" alt="Creative Commons License" /></a></p><p><strong>DIKSAINS </strong>is licensed under a <a href="http://creativecommons.org/licenses/by-sa/4.0/" rel="license">Creative Commons Attribution-ShareAlike 4.0 International License</a>.</p> https://ejournal.unib.ac.id/diksains/article/view/24741 <p><strong>ABSTRAK</strong></p> <p>Penelitian ini bertujuan untuk mengembangkan buku saku elektronik berbasis android yang valid menggunakan aplikasi <em>calib</em><em>re</em><em>, sigil</em> dan <em>Supreader</em> pada materi sistem ekskresi yang layak untuk digunakan dalam proses pembelajaran. Serta mengetahui respon siswa terhadap buku saku elektronik berbasis android menggunkan aplikasi calibre dan sigil pada materi sistem ekskresi manusia digunakan dalam proses pembelajaran. Sampel dalam penelitian ini adalah seluruh peserta kelas VIII A dengan jumlah 27 siswa. Pengambilan sampel menggunakan teknik pengumpulan data menggunakan lembar angket kebutuhan guru dan siswa, lembar validasi ahli materi dan media serta lembar respon siswa kemudian data dianalisis dengan teknik analisis data kuantitatif. Hasil penelitian menunjukkan bahwa e-buku saku menjadi salah satu bahan ajar yang dapat membantu peserta didik dalam mempelajari materi sistem ekskresi manusia.</p> <p> </p> <p>Kata kunci: Pengembangan buku saku elektronik, sistem ekskresi manusia</p> <p> </p> <p><strong>ABSTRACT</strong></p> <p>This study aims to develop a valid android-based electronic pocket book using the caliber and sigil applications on excretory system material that is suitable for use in the learning process. As well as knowing student responses to android-based electronic pocket books using the caliber and sigil applications on the human excretory system material used in the learning process. The sample in this study were all participants in class VIII A with a total of 27 students. Sampling used data collection techniques using questionnaires for teacher and student needs, material and media expert validation sheets and student response sheets, then the data were analyzed using quantitative data analysis techniques. The results of the study indicate that e-pocket books are one of the teaching materials that can assist students in studying the material of the human excretory system.</p> <p> </p> <p>Keyword : Development of electronic pocket book, human excretory system</p> Anggi anjelie Rendy Wikrama Wardana Indra Sakti Bhakti Karyadi Henny Johan Copyright (c) 2025 Anggi anjelie, Rendy Wikrama Wardana, Indra Sakti, Bhakti Karyadi, Henny Johan https://creativecommons.org/licenses/by-sa/4.0 2025-06-30 2025-06-30 5 2 87 95 10.33369/diksains.5.2.87-95 https://ejournal.unib.ac.id/diksains/article/view/26497 <p><strong>A</strong><strong>B</strong><strong>S</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>K</strong></p> <p><strong> </strong></p> <p>Penelitian ini bertujuan untuk mengembangkan soal berbasis <em>Higher Order Thinking Skill</em> HOTS yang valid secara logis, valid secara empiris, serta mengetahui profil jawaban siswa pada materi kalor dan perpindahannya yang layak untuk digunakan. Sampel dalam penelitian ini adalah siswa kelas VII A dan VII B dengan jumlah keseluruhan berjumlah 54 siswa. Pengambilan sampel menggunakan teknik pengumpulan data dengan uji coba produk soal draft I, kemudian soal draft I di validasi oleh validasi ahli materi, konstruksi, dan bahasa, kemudian diuji kevalidan soal serta melihat profil jawaban siswa kemudian data dianalisis dengan teknik analisis data kuantitatif. Soal-soal HOTS hasil pengembangan bahwa telah valid secara logis ditinjau dari aspek materi, konstruksi, dan bahasa dengan kategori sangat valid. Soal-soal HOTS hasil pengembangan bahwa telah valid secara empiris ditinjau dari validitas, reliabilitas, indeks kesukaran, daya pembeda, dan fungsi pengecoh dari tinjauan itu draft soal I berjumlah 20 soal setelah di uji empiris dan dianalisis validitas, reliabilitas, indek kesukaran, daya beda, dan fungsi pengecohnya maka soal yang kualitas memenuhi ada 8 soal. Jika dilihat profil jawaban siswa berada pada soal jenjang kognitif C4 diperoleh 100%. Sedangkan jenjang kognitif soal C5 memperoleh persentase sebesar dengan 97%. Dan pada soal jenjang kognitit C6 memperoleh persentase yaitu 89%.</p> <p> </p> <p><strong>Kata kunci</strong>: <em>Pengembangan soal HOTS, Kalor dan Perpindahannya.</em></p> <p><strong><em>ABS</em></strong><strong><em>T</em></strong><strong><em>R</em></strong><strong><em>A</em></strong><strong><em>C</em></strong><strong><em>T</em></strong></p> <p><strong><em> </em></strong></p> <p>This study aims to develop questions based on HOTS Higher Order Thinking Skills that are logically valid, empirically valid, and to find out the profile of students' answers on heat and displacement material that is feasible to use. The sample in this study were students in class VII A and VII B with a total of 54 students. Sampling used data collection techniques by testing draft I product questions, then draft I questions were validated by material, construction, and language expert validation, then tested for the validity of the questions and looking at student answer profiles then the data were analyzed using quantitative data analysis techniques. The developed HOTS questions were logically valid in terms of material, construction and language aspects with very valid categories. The HOTS questions as a result of the development were empirically valid in terms of validity, reliability, difficulty index, discriminatory power, and the deceptive function of that review. The draft questions I totaled 20 questions after being empirically tested and analyzed for validity, reliability, index of difficulty, discriminatory power. , and the deceptive function, there are 8 questions that fulfill the quality. If you look at the profile of the student's answers in the question of cognitive level C4, it is obtained 100%. While the cognitive level of C5 questions obtained a percentage of 97%. And in terms of cognitive level C6, the percentage is 89%.</p> <p><strong> </strong></p> <p><strong>Keywords:</strong> <em>Development of HOTS questions, Heat and Displacement.</em></p> Pricilia Debi Cantika Endang Widi Winarni Deni Parlindungan Rendy Wikrama Wardana Mellyta Uliyandari Copyright (c) 2025 Pricilia Debi Cantika, Endang Widi Winarni, Deni Parlindungan, Rendy Wikrama Wardana, Mellyta Uliyandari https://creativecommons.org/licenses/by-sa/4.0 2025-06-30 2025-06-30 5 2 96 104 10.33369/diksains.5.2.96-104 https://ejournal.unib.ac.id/diksains/article/view/29091 <p><strong>A</strong><strong>B</strong><strong>S</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>K</strong></p> <p><strong> </strong></p> <p>Penelitian ini bertujuan untuk: 1) Mendeskripsikan kelayakan <em>E-Booklet</em> sebagai media interaktif menggunakan <em>Flip PDF Corporate</em> materi sistem ekskresi manusia kelas VIII, 2) Mendeskripsikan persepsi peserta didik terhadap <em>E-Booklet</em> sebagai media interaktif menggunakan <em>Flip PDF Corporate</em> materi sistem ekskresi manusia kelas VIII. Metode penelitian yang digunakan adalah <em>Research and Development</em> (R &amp; D). Penelitian ini menggunakan model ADDIE, dengan tahapan: 1) <em>Analysis</em>, 2) <em>Design</em>, 3) <em>Development</em>. Kelayakan <em>E-Booklet</em> berdasarkan hasil validasi ahli 2 orang (dosen) dan 2 orang praktisi (guru). Persepsi peserta didik terhadap <em>E-Booklet</em> dengan memberikan angket kepada peserta didik. Hasil kelayakan <em>E-Booklet</em> sebesar 95,91% termasuk kategori sangat layak. Hasil persepsi <em>E-Booklet</em> sebesar 87,98% termasuk kategori sangat baik. Dapat disimpulkan <em>E-Booklet</em> sebagai media interaktif menggunakan <em>Flip PDF Corporate</em> materi sistem ekskresi manusia kelas VIII ini sangat layak untuk digunakan sebagai media pembelajaran.</p> <p> </p> <p><strong>Kata kunci:</strong><em>E-Booklet, Flip PDF Corporate</em>, Sistem Ekskresi Manusia</p> <p> </p> <p><strong>ABS</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>C</strong><strong>T</strong></p> <p><strong> </strong></p> <p>This study aims to: 1) Describe the feasibility of the E-Booklet as an interactive medium using Flip PDF Corporate material on the human excretion system class VIII, 2) Describe students' perceptions of the E-Booklet as an interactive medium using Flip PDF Corporate material on the human excretion system class VIII. The research method used is Research and Development (R &amp; D). This study uses the ADDIE model, with stages: 1) Analysis, 2) Design, 3) Development. The feasibility of the E-Booklet is based on the results of the validation of 2 experts (lecturers) and 2 practitioners (teachers). Students' perceptions of the E-Booklet by giving questionnaires to students. The e-Booklet eligibility result of 95.91% is in the very feasible category. The results of the perception of the E-Booklet of 87.98% are in the very good category. It can be concluded that the E-Booklet as an interactive media using Flip PDF Corporate material on the human excretory system class VIII is very suitable for use as a learning medium.</p> <p> </p> <p><strong>Keywords:</strong> E<em>-Booklet, Flip PDF Corporate, human Excretory System</em></p> Nora Kumala Tungga Rosane Medriati Deni Parlindungan Ariefa Primair Yani Rendy Wikrama Wardana Copyright (c) 2025 Nora Kumala Tungga, Rosane Medriati, Deni Parlindungan, Ariefa Primair Yani, Rendy Wikrama Wardana https://creativecommons.org/licenses/by-sa/4.0 2025-06-30 2025-06-30 5 2 105 115 10.33369/diksains.5.2.105-115 https://ejournal.unib.ac.id/diksains/article/view/29375 <p><strong>ABSTRAK</strong></p> <p> </p> <p>Penelitian ini bertujuan untuk: 1) Mengetahui kelayakan E-LKPD berbasis <em>Contextual Teaching and Learning (CTL) </em>pada System Ekskresi kulit pada manusia untuk peserta didik SMP, 2) Mengetahui hasil respon peserta didik terhadap E-LKPD berbasis <em>Contextual Teaching and Learning (CTL) </em>peserta didik di SMPN 01 Kota Bengkulu. Metode yang digunakan dalam penelitian ini adalah <em>Research and Development (R&amp;D)</em> dengan menggunakan model 4<em>D (Define, Design, Develop, Disseminate). </em>Namun penelitian ini hanya terbatas pada tahap <em>Develop</em>. Instrumen yang digunakan dalam penelitian ini adalah: 1) Lembar angket wawancara, 2) Lembar angket validasi ahli materi dan ahli media, 3) Lembar angket respon peserta didik. Hasil penelitian ini menunjukkan bahwa hasil rata-rata uji validasi ahli materi 96% dengan kategori sangat valid. Sedangkan pada uji validasi media mendapatkan hasil rata-rata 95% dengan kategori sangat valid. Pada uji respon peserta didik mendapatkan hasil rata-rata 83,2% dengan kategori sangat baik. Berdasarkan hasil uji validasi dapat disimpulkan bahwa E-LKPD yang dikembangkan layak untuk diujicobakan. Berdasarkan hasil uji respon peserta didik mendapatkan kategori sangat baik hal ini dapat diartikan bahwa sebagian peserta didik memberikan respon sangat baik terhadap E-LKPD.</p> <p> </p> <p><strong>Kat</strong><strong>a kunci: E-lkpd, <em>contextual teaching and learning</em>, system ekskresi kulit manusia</strong></p> <p> </p> <p><strong>A</strong><strong>B</strong><strong>STRACT</strong></p> <p> </p> <p><em>This study aims to: 1) Determine the feasibility of E-LKPD based on Contextual Teaching and Learning (CTL) in the Human Skin Excretory System for junior high school students, 2) Know the results of student responses to E-LKPD based on Contextual Teaching and Learning (CTL) students at SMPN 01 Bengkulu City. The method used in this study is Research and Development (R&amp;D) using a 4D model (Define, Design, Develop, Disseminate). However, this research is only limited to the Development stage. The instruments used in this study are: 1) Interview questionnaire sheet, 2) Material expert and media expert validation questionnaire sheet, 3) Student response questionnaire sheet. The results of this study showed that the average result of the material expert validation test was 96% with a very valid category. Meanwhile, the media validation test obtained an average result of 95% with a very valid category. In the response test, students got an average result of 83.2% in the very good category. Based on the results of the validation test, it can be concluded that the E-LKPD developed is feasible to be tested. Based on the results of the student response test getting a very good category, this can be interpreted that some students give a very good response to E-LKPD.</em></p> <p><em> </em></p> <p><strong><em>Keywords: E-lkpd, contextual teaching and learning, human skin excretory system</em></strong></p> Isya Vira Yanti Ariefa Primair Yani Rendy Wikrama Wardana Sutarno Sutarno Mellyta Uliyandari Copyright (c) 2025 Isya Vira Yanti, Ariefa Primair Yani, Rendy Wikrama Wardana, Sutarno Sutarno, Mellyta Uliyandari https://creativecommons.org/licenses/by-sa/4.0 2025-06-30 2025-06-30 5 2 116 125 10.33369/diksains.5.2.116-125 https://ejournal.unib.ac.id/diksains/article/view/29385 <p><strong>A</strong><strong>B</strong><strong>S</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>K</strong></p> <p><strong> </strong></p> <p>Penelitian ini bertujuan untuk mengembangkan bahan ajar LKPD berbasis Sains Teknologi Masyarakat (STM) Pada Materi Zat Aditif Kelas VIII SMP yang tervalidasi oleh para ahli. Jenis penelitian ini adalah Penelitian dan Pengembangan (R&amp;D) dengan model pengembangan 4D dengan dibatasi hanya pada tahap pengembangan (development). Penelitian dilakukan di SMP Negeri 05 Seluma. Instrumen yang digunakan dalam penelitian ini berupa angket validasi ahli dan angket respon siswa. Teknik analisis validasi yang digunakan adalah formula Aiken’ V . Hasil penelitian ini berupa pengembangan LKPD Berbasis Sains Teknologi Masyarakat (STM) Pada Materi Zat Aditif kelas VIII SMP. Hasil penelitian LKPD dinyatakan layak digunakan dengan skor keseluruhan rata-rata dalam kategori sangat valid, yang menunjukkan bahwa bahan ajar yang dikembangkan telah layak secara konseptual dari aspek materi, bahasa dan media. Hasil respon peserta didik kelas VIII SMP Negeri 05 Seluma terhadap bahan ajar LKPD secara keseluruhan mendapat persentase rata-rata dalam kategori sangat baik. Hal tersebut menunjukkan bahwa sebagian besar peserta didik memberikan respon positif terhadap bahan ajar LKPD yang telah dikembangkan.</p> <p> </p> <p>Kata kunci : LKPD, STM, Zat Aditif,</p> <p> </p> <p><strong>ABS</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>C</strong><strong>T</strong></p> <p> </p> <p><em>This study aims to develop teaching materials for the development of Science-Based Community Technology (STM) Student Worksheets on Additive Substance Material for Grade VIII SMP which are validated by experts. This type of research is Research and Development (R&amp;D) with a 4D development model limited to the development stage. The research was conducted at SMP Negeri 05 Seluma. The instruments used in this study were expert validation questionnaires and student response questionnaires. The validation analysis technique used is the Aiken' formula. The results of this study were in the form of developing student worksheets based on Science Technology Society (STM) on additive material for class VIII SMP. The results of the study on the development of student worksheets were declared fit for use with an average overall score in the very valid category, indicating that the teaching materials developed were conceptually feasible from the aspects of material, language and media. The results of the responses of class VIII students of SMP Negeri 05 Seluma to the teaching materials for the development of worksheets for students as a whole got an average percentage in the very good category. This shows that the majority of students gave a positive response to the teaching materials for the development of student worksheets that had been developed.</em></p> <p><em> </em></p> <p><em>Keyword : STM, Worksheets , Additives.</em></p> Gita Nita Utami Ariefa Primair Yani Irwan Koto Sutarno Sutarno Bhakti Karyadi Copyright (c) 2025 Gita Nita Utami, Ariefa Primair Yani, Irwan Koto, Sutarno Sutarno, Bhakti Karyadi https://creativecommons.org/licenses/by-sa/4.0 2025-06-30 2025-06-30 5 2 126 137 10.33369/diksains.5.2.126-137 https://ejournal.unib.ac.id/diksains/article/view/29423 <p><strong>ABSTRAK</strong></p> <p>Berdasarkan hasil observasi di SLB Negeri 5 Kota Bengkulu, guru membutuhkan inovasi bahan ajar IPA yang dapat mendukung kebutuhan siswa tunagrahita dalam belajar IPA salah satunya dalam bentuk bahan ajar berupa <em>handout </em>elektronik bergambar. Penelitian ini bertujuan menghasilkan <em>handout </em>elektronik bergambar tema keanekaragaman hewan berbasis KOKO (Kontekstual dan kooperatif) untuk siswa tunarahita dengan melihat kelayakan produk dan respon guru. Penelitian ini adalah penelitian pengembangan dengan model 4-D. terdiri dari 4 tahap, mulai dari pendefinisian, perancangan, pengembangan, dan penyebaran. Namun penelitian ini dibatasi pada tahap <em>develop</em> saja. Jenis data yang diperoleh adalah kualitatif dan kuantitatif. Hasil penelitian menunjukkan pada aspek materi dinyatakan sangat layak dengan presentase 93%, aspek bahasa didapat presentase 94% dengan kategori sangat layak dan aspek media didapat presentase 95% dengan kategori sangat layak Sehingga <em>handout </em>elektronik yang dikembangkan ini sangat layak untuk dilanjutkan pada tahap uji lapangan. Hasil analisis dari validasi isi menggunakan rumus Aiken V. Nilai validitas isi untuk aspek materi adalah 0,91 dengan kriteria validitas tinggi, nilai validitas isi untuk aspek bahasa adalah 0,92 dengan kriteria validitas tinggi. Nilai validitas isi untuk aspek media adalah 0,93 dengan kriteria validitas tinggi. Nilai validitas isi rata-rata untuk total hasil validasi adalah 0,94 dengan kriteria validitas tinggi. Berdasarkan hasil angket respon guru terhadap <em>handout </em>elektronik bergambar tema keanekaragaman hewan berbasis KOKO (Kontekstual dan Kooperatif) subtema perkembangbiakan hewan di SLB Negeri 5 Kota Bengkulu didapat hasil 93 % respon guru dinyatakan sangat baik.</p> <p> </p> <p><strong>Kata kunci:</strong> <em>handout </em>elektronik<em>,</em>KOKO, tunagrahita.</p> <p><br /><strong>ABSTRACT</strong></p> <p> Based on the results of observations at SLB Negeri 5 Bengkulu City, teachers need innovative science teaching materials that can support the needs of mentally retarded students in learning, one of which is in the form of teaching materials in the form of illustrated electronic handouts. This study aims to produce electronic handouts with the theme of animal diversity based on KOKO (Contextual and cooperative) for mentally retarded students by looking at the feasibility of the product and the teacher's response. This research is a developmental research with a 4-D model. consists of 4 stages, starting from definition, design, development, and deployment. However, this research is limited to the develop stage only. The types of data obtained are qualitative and quantitative. The results showed that the material aspect was declared very feasible with a percentage of 93%, the language aspect was obtained with a percentage of 94% with a very feasible category and the media aspect was obtained with a percentage of 95% with a very feasible category. So that the electronic handout developed is very feasible to continue at the field test stage. The results of the analysis of content validation used the Aiken V formula. The content validity value for the material aspect was 0.91 with high validity criteria, the content validity value for the language aspect was 0.92 with high validity criteria. The content validity value for the media aspect is 0.93 with high validity criteria. The average content validity value for the total validation results is 0.94 with high validity criteria. Based on the results of the teacher's response questionnaire to the electronic handout with the theme of animal diversity based on the KOKO (Contextual and Cooperative) animal breeding sub-theme at SLB Negeri 5 Bengkulu City, the results of 93% of the teacher's response were stated to be very good.</p> <p><strong><em> </em></strong><strong><em>Keywords:</em></strong><em> electronic handout,</em> KOKO, <em>mentally retarded.</em></p> Ida Lestari Rendy Wikrama Wardana Sutarno Sutarno Nirwana Nirwana Aprina Defianti Copyright (c) 2025 Ida Lestari, Rendy Wikrama Wardana, Sutarno Sutarno, Nirwana Nirwana, Aprina Defianti https://creativecommons.org/licenses/by-sa/4.0 2025-06-30 2025-06-30 5 2 138 145 10.33369/diksains.5.2.138-145 https://ejournal.unib.ac.id/diksains/article/view/29462 <p><strong>A</strong><strong>B</strong><strong>S</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>K</strong></p> <p> </p> <p>Penelitian ini bertujuan untuk mendeskripsikan pengaruh, besarnya pengaruh, dan tanggapan siswa dalam penerapan pembelajaran IPA terpadu tipe connected berbantuan alat peraga sederhana terhadap penguasaan konsep siswa. Jenis metode yang digunakan dalam penelitian ini adalah pre-eksperimen dengan desain penelitian one group pretest-posttest. Penelitian ini dilaksanakan di SMPN 11 Kota Bengkulu dengan sampel penelitian yaitu siswa kelas VIII C. Pemilihan sampel dilakukan dengan menggunakan teknik purposive sampling. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah wawancara, tes, angket, dan dokumentasi. Berdasarkan perhitungan analisis pengaruh menggunakan uji-t paired diperoleh hasil &gt; (-17,344 &gt; 2,042) dan nilai sig. (2-tailed) &lt; 0,05 (0,00. &lt; 0,05). Sehingga kriteria pengambilan hipotesis pada penelitian ini adalah H0 ditolak dan Ha diterima. Besarnya pengaruh dianalisis menggunakan perhitungan effect size Cohen’s sebesar 0,32 yang artinya terdapat pengaruh yang sedang. Serta analisis angket tanggapan siswa terhadap beberapa indikator dalam penerapan pembelajaran berkategori baik dengan skor rerata 77. Sehingga dapat disimpulkan bahwa penerapan pembelajaran IPA terpadu tipe connected berbantuan alat peraga sederhana memberikan pengaruh yang signifikan terhadap penguasaan konsep siswa.</p> <p> </p> <p>Kata kunci: tipe connected, alat peraga sederhana, sistem pernapasan manusia, penguasaan konsep.</p> <p> </p> <p><strong><em>ABS</em></strong><strong><em>T</em></strong><strong><em>R</em></strong><strong><em>A</em></strong><strong><em>C</em></strong><strong><em>T</em></strong></p> <p><em> </em></p> <p><em>This study aims to describe the effect, the magnitude of the effect, and student responses in the application of connected type integrated science learning assisted by simple props on student concept mastery. The type of method used in this research is pre-experiment with one group pretest-posttest research design. This research was conducted at SMPN 11 Bengkulu City with the research sample being students of class VIII C. The sample selection was carried out using purposive sampling technique. Data collection techniques used in this study were interviews, tests, questionnaires, and documentation. Based on the calculation of the effect analysis using the paired t-test, the results obtained </em> <em> &gt; </em> <em> </em><em> </em><em>(-17.344 &gt; 2.042) and sig. (2-tailed) &lt; 0.05 (0.00. &lt; 0.05). So that the criteria for making hypotheses in this study are H0 rejected and Ha accepted. The amount of influence was analyzed using the calculation of Cohen's effect size of 0.32, which means that there is a moderate influence. And the questionnaire analysis of student responses to several indicators in the application of learning is categorized as good with an average score of 77. So it can be concluded that the application of connected type integrated science learning assisted by simple props has a significant effect on students' mastery of concepts.</em></p> <p><em> </em></p> <p><em>K</em><em>eywo</em><em>r</em><em>d</em><em>s</em><em>: </em><em>connected type, simple props, human respiratory system, concept mastery.</em></p> Liza Christine Veronica Sutarno Sutarno Rosane Medriati Lukman Nulhakim Rendy Wikrama Wardana Copyright (c) 2025 Liza Christine Veronica, Sutarno Sutarno, Rosane Medriati, Lukman Nulhakim, Rendy Wikrama Wardana https://creativecommons.org/licenses/by-sa/4.0 2025-06-30 2025-06-30 5 2 146 156 10.33369/diksains.5.2.146-156 https://ejournal.unib.ac.id/diksains/article/view/29479 <p><strong>A</strong><strong>B</strong><strong>S</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>K</strong></p> <p>Penelitian ini bertujuan untuk menggambarkan kemampuan berpikir kritis siswa kelas VIII di SMPN 7 Seluma. Jenis penelitian ini adalah Deskriptif kuantitatif . Subjek penelitian adalah seluruh siswa kelas VIII SMPN 7 Seluma dengan jumlah 128 orang. Teknik pengumpulan data penelitian menggunakan instrumen tes berupa soal essay sebanyak 10 butir soal pada materi gerak benda dan makhluk hidup dilingkungan sekitar. Teknik pengambilan sampel pada penelitian ini menggunakan teknik <em>total sampling</em>. Hasil penelitian menunjukkan bahwa rata-rata kemampuan berpikr kritis siswa kelas VIII SMPN 7 Seluma berada pada kategori sedang (44,51). Berdasarkan indikator kemampuan berpikir kritis yang terendah (33,85) memberikan penjelasan sederhana, tertinggi (58,72) membangun keterampilan dasar. Faktor yang mempengaruhi kemampuan berpikir kritis rendah diduga karena metode pembelajaran yang kurang mengajak siswa untuk aktif selama proses pembelajaran.</p> <p>Kata kunci: analisis, berpikir kritis, SMP, Seluma</p> <p> </p> <p><strong><em>ABS</em></strong><strong><em>T</em></strong><strong><em>R</em></strong><strong><em>A</em></strong><strong><em>C</em></strong><strong><em>T</em></strong></p> <p><em>Study aims to describe students critical thinking skills at SMPN 7 Seluma in class VIII. This research is descriptive quantitative. The research subjects were all students of class VIII SMPN 7 Seluma with a total of 128 people. Research data collection techniques used test instruments in the form of essay questions of 10 questions on the material of motion of objects and living things in the surrounding environment. The sampling technique in this study used a total sampling technique. </em><em>Results showed that the average critical thinking ability of class VIII students of SMPN 7 Seluma was in the medium category (44.51). Based on indicators of critical thinking skills, the lowest (33.85) provides simple explanations, the highest (58.72) builds basic skills. Factors that affect low critical thinking skills are thought to be due to learning methods that do not invite students to be active during the learning process.</em></p> <p>Keywords: <em>analysis, critical thingking, junior high school, Seluma</em></p> Irma Oktiara Difa Indra Sakti Deni Parlindungan Nirwana Nirwana Aprina Defianti Sutarno Sutarno Copyright (c) 2025 Irma Oktiara Difa, Indra Sakti, Deni Parlindungan, Nirwana Nirwana, Aprina Defianti, Sutarno Sutarno https://creativecommons.org/licenses/by-sa/4.0 2025-06-30 2025-06-30 5 2 157 164 10.33369/diksains.5.2.157-164 https://ejournal.unib.ac.id/diksains/article/view/43143 <p><strong>A</strong><strong>B</strong><strong>S</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>K</strong></p> <p> </p> <p>Penelitian ini bertujuan untuk menganalisis peningkatan keaktifan dan hasil belajar mahasiswa pada materi kimia air melalui penerapan model pembelajaran kooperatif <em>Two</em> <em>Stay</em> <em>Two</em><em> </em><em>Stray</em> (TSTS). Latar belakang penelitian ini adalah rendahnya tingkat keaktifan dan hasil belajar mahasiswa dalam mata kuliah kimia air yang seringkali diajarkan secara konvensional, sehingga kurang mendorong interaksi dan pemahaman mendalam. Penelitian ini menggunakan pendekatan kuantitatif dengan desain <em>Quasi-Eksperimen</em> jenis <em>Nonequivalent</em> <em>Control</em> <em>Group</em> <em>Design</em>. Populasi penelitian adalah mahasiswa program studi Pendidikan IPA yang mengambil mata kuliah Kimia Lingkungan. Sampel dipilih secara <em>purposive</em> <em>sampling</em>, terdiri dari dua kelas: satu kelas eksperimen yang menerapkan model TSTS, dan satu kelas kontrol yang menggunakan metode pembelajaran konvensional. Data keaktifan dikumpulkan melalui lembar observasi, sedangkan data hasil belajar diperoleh dari <em>pretest</em> dan <em>posttest</em> yang diberikan kepada kedua kelompok. Analisis data dilakukan secara deskriptif dan inferensial. Data hasil belajar dianalisis menggunakan <em>Independent</em> <em>Sample</em> <em>T-Test</em> atau <em>Mann-Whitney</em> <em>U</em> <em>Test</em> setelah uji normalitas dan homogenitas, serta perhitungan <em>N-Gain</em> untuk melihat peningkatan. Data keaktifan dianalisis secara deskriptif persentase. Hasil penelitian menunjukkan bahwa model pembelajaran <em>Two</em> <em>Stay</em> <em>Two</em> <em>Stray</em> secara signifikan mampu meningkatkan keaktifan dan hasil belajar mahasiswa pada materi Kimia Air dibandingkan dengan metode pembelajaran konvensional. Nilai <em>N</em><em>-</em><em>gain</em> <em>Score</em> pada tabel pada kelas eksperimen berada dalam kategori tinggi yaitu 0,74 berada pada 0,30 &gt; N<em>-gain</em> <em>&gt;</em> 0,70, sedangkan pada kelas kontrol mendapatkan nilai 0,68 berada pada 0,30 ≤ N<em>-gain</em> ≤ 0,70 berada dalam kategori sedang. Peningkatan keaktifan terlihat dari partisipasi aktif mahasiswa dalam diskusi kelompok dan berbagi informasi, yang berkolerasi positif dengan peningkatan pemahaman konsep.</p> <p> </p> <p>Kata kunci : <em>Two</em> <em>Stay</em> <em>Two</em> <em>Stray</em> (TSTS), Kimia Air, Keaktifan Mahasiswa, Hasil Belajar</p> <p> </p> <p><strong>ABS</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>C</strong><strong>T</strong></p> <p> </p> <p>This study aims to analyze the increase in student activity and learning outcomes in water chemistry materials through the application of the <em>Two</em> <em>Stay</em> <em>Two</em> <em>Stray</em> (TSTS) cooperative learning model. The background of this research is the low level of student activity and learning outcomes in water chemistry courses which are often taught conventionally, so that they do not encourage interaction and deep understanding. This study uses a quantitative approach with <em>a</em> <em>Quasi-Experimental</em> design of <em>the</em> <em>Nonequivalent</em> <em>Control</em> <em>Group</em> <em>Design</em>. The research population is students of the Sains study program who take the Environment Chemistry course. The sample was selected by <em>purposive</em> <em>sampling</em>, consisting of two classes: one experimental class applying the TSTS model, and one control class using conventional learning methods. Activity data was collected through observation sheets, while learning outcome data was obtained from <em>pretest</em> and <em>posttest</em> given to both groups. Data analysis was carried out descriptively and inferentially. The learning outcome data was analyzed using <em>the</em> <em>Independent</em> <em>Sample</em> <em>T-Test</em> or <em>Man-Whitney</em> <em>U</em> <em>Test</em> after the normality and homogeneity test, as well as the <em>calculation</em> <em>of</em> <em>N-Gain</em> to see improvement. Activeness data was analyzed descriptively as a percentage. The results of the study show that the Two Stay Two Stray learning model is significantly able to increase student activity and learning outcomes in Water Chemistry materials compared to conventional learning methods. The <em>N</em><em>-</em><em>gain</em> <em>Score</em> value in the table in the experimental class was in the high category, which was 0.74, was in the high category, which was 0.30 &gt; <em>N-gain</em> <em>&gt;</em> 0.70, while in the control class, the value of 0.68 was in the 0.30 ≤ <em>N-gain</em> ≤ 0.70 was in the medium category. The increase in activeness can be seen from the active participation of students in group discussions and information sharing, which is positively correlated with increased understanding of concepts.</p> <p> </p> <p>Keywords : <em>Two</em> <em>Stay</em> <em>Two</em> <em>Stray</em> (TSTS), Water Chemistry, Student Activity, Learning Outcomes</p> Arsela Eko Listiono Susanti Susanti Silvia Syeptiani Annisa Puji Astuti Copyright (c) 2025 Arsela Eko Listiono, Susanti Susanti, Silvia Syeptiani, Annisa Puji Astuti https://creativecommons.org/licenses/by-sa/4.0 2025-07-31 2025-07-31 5 2 165 171 10.33369/diksains.5.2.165-171 https://ejournal.unib.ac.id/diksains/article/view/43473 <p><strong>A</strong><strong>B</strong><strong>S</strong><strong>T</strong><strong>R</strong><strong>A</strong><strong>K</strong></p> <p> </p> <p>Penelitian ini bertujuan untuk menganalisis kualitas media pembelajaran Anatomi dan Fisiologi Tumbuhan yang dikembangkan oleh mahasiswa calon guru IPA melalui model pembelajaran berbasis proyek (<em>Project Based Learning</em>). Metode penelitian yang digunakan adalah deskriptif dengan pendekatan kuantitatif. Subjek dalam penelitian ini yaitu mahasiswa semester 3 kelas A dan B prodi S1 Pendidikan IPA FKIP Universitas Bengkulu yang berjumlah 64 orang. Instrumen yang digunakan adalah lembar penilaian media Anatomi dan Fisiologi Tumbuhan dengan kriteria: kebutuhan, ideal, dan nilai nilai, ketepatan efektivitas pemanfaatan media pembelajaran dan pencapaian tujuan pembelajaran yang telah dirumuskan yang dikembangkan menjadi 9 aspek penilaian. Hasil analisis menunjukkan bahwa aspek dengan skor tertinggi adalah <em>kesesuaian dengan nilai edukatif</em> (persentase 86,81%) dan <em>relevansi dengan materi</em> (86,11%) yang termasuk dalam kategori "sangat baik". Sementara itu, aspek <em>kreativitas dan orisinalitas</em> memperoleh persentase terendah sebesar 75,69% dengan kategori "baik". Rata-rata keseluruhan kualitas media mencapai 81,33% dengan kategori "sangat baik".</p> <p> </p> <p><strong>Kata kunci:</strong> analisis, media pembelajaran, anatomi dan fisiologi tumbuhan, berbasis proyek.</p> <p> </p> <p><strong><em>ABS</em></strong><strong><em>T</em></strong><strong><em>R</em></strong><strong><em>A</em></strong><strong><em>C</em></strong><strong><em>T</em></strong></p> <p><em> </em></p> <p><em>This study aims to analyze the quality of instructional media on Plant Anatomy and Physiology developed by prospective science teachers through a Project-Based Learning (PjBL) model. The research method used is descriptive with a quantitative approach. The subjects of this study were 64 third-semester students from classes A and B of the Science Education undergraduate program at the Faculty of Teacher Training and Education, University of Bengkulu. The instrument used was an assessment rubric for instructional media on Plant Anatomy and Physiology, with criteria covering needs, ideals and values, accuracy, effectiveness in media utilization, and achievement of predetermined learning objectives, which were further elaborated into nine assessment aspects. The analysis results showed that the highest-scoring aspects were alignment with educational value (86.81%) and relevance to the subject matter (86.11%), both categorized as "excellent." Meanwhile, the lowest-scoring aspect was creativity and originality, with a percentage of 75.69%, categorized as "good." Overall, the average quality of the instructional media reached 81.33%, which falls under the "excellent" category.</em></p> <p><strong><em> </em></strong></p> <p><strong><em>Keywords</em></strong><em>: analysis, instructional media, plant anatomy and physiology, project-based learning.</em></p> Annisa Puji Astuti Silvia Syeptiani Arsela Eko Listiono Copyright (c) 2025 Annisa Puji Astuti, Silvia Syeptiani, Arsela Eko Listiono https://creativecommons.org/licenses/by-sa/4.0 2025-07-31 2025-07-31 5 2 172 180 10.33369/diksains.5.2.172-180