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Fostering Environmental Knowledge and Literacy with Natural Products Experiment Activity Worksheets Nuswowati, Murbangun; Kusmanto, Harjito; Harjono, Harjono; Nuryanto, Nuryanto; Zahro, Ainu Ilmiatuz; Sharif, Aisyah Mohamad
Jurnal Tadris Kimiya Vol 9 No 1 (2024)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v9i1.28263

Abstract

This research aims to improve student environmental knowledge and literacy with natural products experiment activity worksheets. The methods used in this research are pre-experimental. The subjects of this research are 15 students from an Islamic high school. The research results show that natural products experiment activity worksheets effectively improve students' learning outcomes. The research results indicate that the pre-test results obtained an average score of 50.8, indicating that students needed help understanding the material before using natural products' experiment activity worksheets. Post-test results showed an average score of 80.5, indicating that students experienced increased learning outcome scores. The average normalized gain score is 0.59, indicating a medium increase in chemistry learning outcomes. The self-assessment questionnaire on environmental literacy, conducted after using the integrated natural products experiment activity worksheets, showed that knowledge had an average score of 4.33 and was rated as excellent, behavior had an average score of 4.31 and was rated as good, and attitude had an average score of 4.37 and was also rated as good. Overall, students' environmental literacy was rated as outstanding, with an average score of 86.74%.
Pengembangan Instrumen Three Tier Diagnostic Test Berbasis Multirepresentasi untuk Menganalisis Miskonsepsi Siswa pada Materi Asam Basa Lestari, Fina Ayu; Priatmoko, Sigit; Susilaningsih, Endang; Harjono, Harjono
Chemistry in Education Vol 12 No 2 (2023): Terbit bulan Oktober 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/chemined.v12i2.69048

Abstract

Penelitian ini bertujuan untuk mengembangkan instrumen three tier diagnostic test berbasis multirepresentasi untuk mengidentifikasi miskonsepsi siswa yang dianalisis menggunakan model Rasch. Penelitian dilakukan menggunakan desain 4D yang dikemukakan oleh Thiagarajan meliputi tahap: define, design, development, dan disseminate, namun dalam penelitian ini hanya sampai pada tahap development. Hasil validasi ahli menunjukkan instrumen tes masuk dalam kategori sangat valid dengan ratarata skor 111,3 dari total skor 120. Hasil analisis reliabilitas menggunakan model Rasch menunjukkan bahwa reliabilitas instrumen belum cukup baik. Hasil analisis miskonsepsi secara klasikal menunjukkan sebanyak 47% siswa paham konsep, 16% siswa mengalami miskonsepsi positif, 12% siswa mengalami miskonsepsi negatif, 15% siswa mengalami miskonsepsi utuh, 4% siswa kurang paham, 1% siswa kurang yakin, dan 5% siswa tidak paham konsep. Siswa secara umum memberikan respon positif terhadap instrumen tes dibuktikan dengan angket. Persentase siswa yang memberikan respon setuju dan sangat setuju yakni sebanyak 45% dan 21% pada uji skala kecil, 63% dan 14% pada uji skala besar, serta 62% dan 14% pada uji implementasi.
INFECTION PROCESS OF Fusarium oxysporum FUNGUS: A CAUSE OF DAMPING-OFF ON Acacia mangium’s SEEDLINGS Widyastuti, Siti Muslimah; Tasik, Susanti; Harjono, Harjono
AGRIVITA Journal of Agricultural Science Vol 35, No 2 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i2.275

Abstract

Fusarium oxysporum is the causal agent of damping-off disease. The fungus attacks seedlings of many plant species, including Acacia mangium. In order to effectively control the disease, detailed information on how the fungus infects seedlings of A. mangium and how the plant responds to the fungal infection is essentially needed. The objectives of this research were to investigate: (1) the infection process of F. oxysporumon seedlings of A. mangium, (2) the defence response of A. mangium seedling to infection by F. oxysporum. The fungal pathogen was identified, followed by performance of pathogenicity test. The infection process was followed by macroscopic observation as well as microscopic observation. The result indicated that fungal spore germination was observed at two-day post inoculation in planta. At four-daypost inoculation, hyphae of F. oxysporum had penetrated the collar root of A. mangium seedling via stomata aperture. In addition, fungal hyphae had grown intercellulary in to the vascular tissue. Correspondingly, hypersensitive response was also detected at the stomata aperture. However, this defence mechanism is not effective in stopping the fungus since F. oxysporum is a necrotropic pathogen. Moreover, accumulation of lignin, but not callose, was observed. Keywords:  Fusarium oxysporum, damping-off, Acacia mangium
Analisis Kesuksesan Aplikasi Presensi Mobile QR Code Universitas Muhammadiyah Purwokerto Menggunakan Model DeLone dan McLean Putri, Eno Sukarno; Harjono, Harjono
Journal of Information System Research (JOSH) Vol 5 No 4 (2024): Juli 2024
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josh.v5i4.5624

Abstract

Universitas Muhammadiyah Purwokerto (UMP) has adopted QR Code technology for its student attendance application. However, it is important to evaluate the success and performance of the application. This study aims to determine the level of success and factors that drive the success of the UMP Attendance application. The DeLone and McLean (2003) model uses 6 variables as a research evaluation framework. The research method used is quantitative with an associative approach and uses the SEM-PLS model assisted by SmartPLS 4.1.0.6 software in analyzing data. This research was conducted at Muhammadiyah Purwokerto University with 99 respondents who were active undergraduate students of UMP. The results showed that the implementation of the UMP Presence Application was considered quite successful and successful based on the DeLone and McLean (2003) SI success model. Judging from the aspects of system quality and information quality, it is strong enough to encourage use, user satisfaction and net benefits. However, it is necessary to improve the quality of service to users. So that later it will also affect the increase in use and provide benefits for users of the UMP Presence Application itself.
RANCANG BANGUN BUCKET PADA MINI EXCAVATOR LISTRIK Sugiyanto, Sugiyanto; Prihadianto, Braam Delfian; Harjono, Harjono; Estiko, Dendi Milnanda; Siswantoro, Soeadgihardo
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1723

Abstract

The prime mover for the majority of heavy equipment units is still dominated by fossil fuel engines. Before starting innovation on expensive large excavator machines, innovation can be started with electric mini excavators which have almost the same working system but have affordable development costs. This research focuses on the bucket which is an indicator of the performance of an excavator unit. The research method used was designing, making, and testing a bucket attached to a mini excavator. The final objective of this research is to design the bucket components that are installed on the electric mini excavator and also determine the volume of the bucket when it is in the flat position (struck) and in the full position (heaped). Based on research that has been carried out, the bucket volume of the mini excavator props when it is in the flat position (struck) is 0.012 m3 or the equivalent of 16.8 kg of sand and when it is in the full position (heaped) it is 0.017 m3 or the equivalent of 23.8 kg of sand.
Pengaruh Kualitas Pembelajaran Kimia dan Keterlibatan Siswa terhadap Kemampuan Pemecahan Masalah dan Kemampuan Berpikir Kritis Siswa pada Kurikulum Merdeka Setyaningrum, Rizka Indriani; Harjono, Harjono; Nurhayati, Sri
Jurnal Inovasi Pendidikan Kimia Vol. 19 No. 1 (2025): Jurnal Inovasi Pendidikan Kimia
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/c8f3nd41

Abstract

Kemampuan pemecahan masalah dan kemampuan berpikir kritis merupakan kemampuan penting yang harus dimiliki generasi bangsa di abad 21. Namun, terdapat penurunan kemampuan pemecahan masalah dan kemampuan berpikir kritis yang signifikan setelah pembelajaran dilakukan secara daring. Penelitian ini bertujuan untuk mengetahui pengaruh antara kemampuan pemecahan masalah dan kemampuan berpikir kritis dengan faktor-faktor yang diduga dapat mempengaruhinya diantaranya adalah kualitas pembelajaran kimia dan keterlibatan siswa. Metode yang digunakan dalam penelitian ini menggunakan pendekatan kuantitatif dengan metode survei. Penelitian ini menggunakan sampel jenuh sebanyak 62 peserta didik kelas XI SMA Negeri 16 Semarang.. Pengumpulan data diperoleh dengan menggunakan tes, angket, dan dokumentasi dengan analisis Partial Least Square Structural Equation Modeling (PLS-SEM), berbantuan software SmartPLS 4.0. Hasil analisis menunjukkan bahwa rata-rata kualitas pembelajaran kimia siswa sebesar 79,11% dengan kategori sangat baik, keterlibatan siswa sebesar 93,15% dengan kategori sangat baik, kemampuan pemecahan masalah sebesar 84,07% dengan kategori sangat baik, dan kemampuan berpikir kritis 63,57% dengan kategori baik. Hasil pengujian hipotesis menunjukkan bahwa : (1) keterlibatan siswa berkorelasi positif dan signfikan terhadap kemampuan pemecahan masalah (Tstatistik: 1,991, p-values 0,047), (2) kualitas pembelajaran kimia tidak berkorelasi positif dan tidak signifikan terhadap kemampuan berpikir kritis (Tstatistik : 0,508, p-values : 0,614), (3) kualitas pembelajaran kimia berkorelasi positif dan signifikan terhadap keterlibatan siswa (Tstatistik : 12,891, p-values : 0,000), (4) kualitas pembelajaran kimia berkorelasi positif dan signifikan terhadap kemampuan pemecahan masalah (Tstatistik : 2,656, p-values : 0,008), (5) keterlibatan siswa tidak berkorelasi positif dan tidak signifikan terhadap kemampuan berpikir kritis (Tstatistik : 1,278, p-values : 0,202), (6) kemampuan berpikir kritis berkorelasi positif dan signifikan terhadap kemampuan pemecahan masalah (Tstatistik : 19,648, p-values : 0,000), (7) kemampuan berpikir kritis tidak memediasi pengaruh secara positif dan signifikan antara kualitas pembelajaran kimia terhadap kemampuan pemecahan masalah (Tsatistik : 1,204, p-values : 0,229), (8) kemampuan berpikir kritis tidak memediasi pengaruh secara positif dan signifikan antara keterlibatan siswa terhadap kemampuan pemecahan masalah (Tsatistik : 1,249, p-values : 0,212). Sekolah dan pendidik diharapkan memperhatikan strategi pembelajaran untuk meningkatkan dan mengoptimalkan kemampuan berpikir kritis siswa. Perlu ditambahkan  lembar observasi untuk mendukung latar belakang permasalahan dan perlunya wawancara untuk mendukung angket keterlibatan siswa serta lembar observasi kinerja guru untuk mendukung angket kualitas pembelajaran kimia.
Korelasi Minat Belajar, Motivasi Berprestasi, dan Kualitas Pembelajaran terhadap Kemampuan Berpikir Kritis Siswa pada Materi Laju Reaksi Rihmahwati, Melly; Harjono, Harjono; Susilogati Sumarti, Sri; Tri Prasetya, Agung
Jurnal Inovasi Pendidikan Kimia Vol. 18 No. 2 (2024): Jurnal Inovasi Pendidikan Kimia
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/1864px56

Abstract

Penelitian ini bertujuan untuk menganalisis korelasi minat belajar, motivasi berprestasi, dan kualitas pembelajaran terhadap kemampuan berpikir kritis. Jenis penelitian ini adalah kuantitatif dengan metode survei. Sampel sebanyak 97 siswa SMAN 1 Banyumas. Pengumpulan data menggunakan kuesioner, tes, lembar observasi, dan lembar penilaian diri dengan teknik analisis PLS-SEM. Hasil analisis menunjukkan bahwa minat belajar, motivasi berprestasi, kualitas pembelajaran, dan kemampuan berpikir kritis termasuk dalam kategori tinggi dengan rata-rata persentase berturut-turut 74,89; 80,31; 79,53; dan 67,08%. Hasil pengujian hipotesis menunjukkan bahwa: 1) minat belajar dan kualitas pembelajaran tidak berkorelasi signifikan terhadap kemampuan berpikir kritis, 2) motivasi berprestasi berkorelasi signifikan terhadap kemampuan berpikir kritis, 3) minat belajar dan motivasi berprestasi berkorelasi signifikan terhadap kualitas pembelajaran, 4) kualitas pembelajaran tidak memediasi korelasi minat belajar dan motivasi berprestasi terhadap kemampuan berpikir kritis, 5) minat belajar berkorelasi signifikan terhadap motivasi berprestasi, dan 6) motivasi berprestasi memediasi korelasi minat belajar terhadap kualitas pembelajaran dan kemampuan berpikir kritis.
Exploring Work Readiness Key Factors Among Industrial Chemistry Students in Vocational High Schools Harjono, Harjono; Farhanah, Atikah Alya; Susilaningsih, Endang; Sumarti, Sri Susilogati
Jurnal Kependidikan : Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran, dan Pembelajaran Vol. 10 No. 1 (2024): March
Publisher : LPPM Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jk.v10i1.10564

Abstract

The research aims to analyze the correlation between motivation, learning quality, critical thinking skills, industrial work practice quality, and vocational readiness of Industrial Chemistry students at vocational high schools (SMK). The research employs a quantitative approach with a survey method. The research used purposive sampling from industrial chemistry students in Central Java, with a sample consisting of 63 students in grade XI. Data collection is done through questionnaires and tests, then analyzed using Structural Equation Modeling - Partial Least Squares (SEM–PLS). The research results show that vocational readiness is directly influenced by learning quality and industrial work practice quality, while learning quality influences the quality of industrial work practice. The results of indirect influence analysis show that the quality of industrial work practice mediates the influence of learning quality on vocational readiness. In this study, the motivation and critical thinking skills of students are not proven to have an effect on vocational readiness, both directly and indirectly. Schools are advised to optimize the quality of learning and the quality of industrial work practice through industry collaboration and cooperation with higher education institutions (HEIs). The motivation and critical thinking skills of students should also be considered to play a role in their vocational readiness.
OPTIMALISASI LITERASI MEDIA SOSIAL UMKM DESA NGRINGO, KECAMATAN JATEN, KABUPATEN KARANGANYAR Dani, Jeratallah Aram Dani; Setiawan, Ali Arif; Pramuktisari, Nindita; Wijayanti, Christina Nur; Harjono, Harjono; Syaifullah, Jahid; Fardhila, Widityana Ayu; Poundra, Emmanuelle
Abdi Masya Vol 6 No 2
Publisher : Pusat Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52561/abdimasya.v6i2.635

Abstract

DIDU has become a new phenomenon among entrepreneurs, both small and large. One of them is the MSME world, which has evolved into a long-term program aimed at enhancing human resources and socio-economic conditions. Through the dynamics and development of technology, mass media have become an essential tool that meets primary needs, allowing the community to utilise them according to their needs and benefits. Therefore, literacy and optimisation are necessary for its effective operationalisation. This is important to convey through semi-formal activities from the academy to the community, as practitioners, by collaborating in the Ngringo Village MSME Expo event. With the aim of providing enrichment and updated and upgraded insights to optimise the use of social media as a business tool. Using a qualitative approach with surveys, observations, and face-to-face interviews, and ending with group discussions with business actors. Getting a discussion of the needs of academics and practitioners in improving business needs and producing interactive and innovative responses and discussions, one of which is providing a level of protection to prevent cases of fraud online. The advantages and disadvantages of organising Expo events are continually being improved to ensure consistency in building businesses on an MSME scale.
Development of A Steam-Based Learning Module to Enhance Scientific Writing Skills and Chemical Literacy in Chemical Bonding Material Atikah Indriastuti; Harjono, Harjono
PESHUM : Jurnal Pendidikan, Sosial dan Humaniora Vol. 5 No. 1: Desember 2025
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/peshum.v5i1.13130

Abstract

Chemical bonding is frequently perceived as an abstract and challenging topic by high school students, often resulting in low chemical literacy and underdeveloped scientific writing skills. Conventional, teacher-centered instruction further exacerbates these issues by limiting opportunities for authentic inquiry and scientific communication. To address this gap, this study aimed to develop, validate, and evaluate the effectiveness of a STEAM-based (Science, Technology, Engineering, Arts, and Mathematics) learning module integrated with Project-Based Learning (PjBL) to enhance chemical literacy and scientific writing skills among senior high school students. The research employed a Research and Development (R&D) design using the 4D model (Define, Design, Develop, Disseminate). Participants included 64 students from two experimental classes (XI C1 and XI D1), 25 students from a control class (XI E1) at SMA Negeri 2 Gianyar, and 36 students from SMA Negeri 1 Jatinom for a limited trial. Data were collected through pretest–posttest assessments of chemical literacy, observation rubrics for scientific writing skills, and student and teacher response questionnaires. Expert validation yielded an average Aiken’s V index of 0.967, indicating high validity in content, language, presentation, and alignment with STEAM–PjBL principles. The limited trial demonstrated high practicality, with readability and usability rates of 92% and 91.23%, respectively. In the main implementation, the module proved highly effective: (1) students’ chemical literacy improved significantly, with a normalized gain (N-Gain) of 0.88 (high category), outperforming the control group (N-Gain = 0.69); and (2) scientific writing skills achieved a mastery level of 91.44% (very good category), with a mean score of 3.66 out of 4. Positive responses from students (90.08%) and teachers (96.87%) confirmed that the STEAM–PjBL module fostered an interactive, contextual, and meaningful learning experience. The findings indicate that the module meets the criteria of validity, practicality, and effectiveness, making it well-suited for implementation in chemistry classrooms particularly within Indonesia’s Merdeka Curriculum framework. This study offers a replicable model for integrating interdisciplinary, student-centered approaches to strengthen both conceptual understanding and scientific communication competencies.
Co-Authors - Jumaeri Abidin, Luthfa Abibah Nur Adityo Wahyu Wikanto Aeni, Holidatul Agung Purwo Wicaksono Agung Tri Prasetya Ali Arif Setiawan Amalia Choirni Sovawi, Amalia Choirni Apriliana, Mahatma Arfa, Nafilatul Artani, Amalina Atikah Indriastuti Ayu Cendana, Chinta Celi Bramasto, Alwin Bobby Cahyaningrum, Intan Cepi Kurniawan Damayanti, Yosephine Debbie Dani, Jeratallah Aram Dani Dewi, Siti Herlina Dian Wahyudi Drestajumna, Putu Dwi, Itok Edy Cahyono Eka Purwaningsih Endang Susilaningsih Ermadi Satriya Wijaya, Ermadi Satriya Estiko, Dendi Milnanda Fardhila, Widityana Ayu Farhanah, Atikah Alya Feliana, Kiki Feliana, Kiki Feri Wibowo Fitriana, Syalsa Bella Fitriyaningsih, Afi Hafsari, Sherli Ameilia Hakim, Mansur Hakim, Yusufi Ahmad Fathul Hanuring Ayu Ardhani Putri Hastuti, Vidya Dwi Hastuti, Vidya Dwi Heri Hartanto Herwin Sulistyowati, SH,MH Holifah, Siti Holifah, Siti Irawati Irawati Irsal Revanza ITOK DWI KURNIAWAN Izzania, Rahma Annisa Kadek Evinka Yuristin, Kadek Evinka Kasmui -, Kasmui Khavilla, Vidya Putri Kusmanto, Harjito Kusoro Siadi Lestari, Fina Ayu Lestari, Melinda Dwi Lestari, Melinda Dwi Lestari, Rika Ayu M.Burhanudin Marfina, Apriza Margareta Dian Purnamasari, Margareta Dian Mas’ud, Zainal Alim Mayasari, Ana Murbangun Nuswowati Nanik Wijayati Ningsih, Nuning Melia Norma Eralita Novitasari, Yeni Nufus, Khayatun Nufus, Khayatun Nuning Melianingsih, Nuning Nur Farikha, Jihan Rona Nur Hidayat, Taufiq Wahyu Nur Wijayanti, Christina Nurhayati Nurhayati Nurhidayat, Taufik Nurul Arifin Nuryanto Nuryanto Poundra, Emmanuelle Pramuktisari, Nindita Prasetyaningtyas, Renata Putri Prasetyaningtyas, Renata Putri Prasetyo, Ridho Prihadianto, Braam Delfian Pujiastuti, Rr. S.E Purbasari, Dita Anggi Purnomo, Muhammad Ikhwannusyifa PURWANTI PURWANTI Purwantiningsih Sugita Putri Maha Dewi, S.H., M.H Putri, Adhina Choiri Putri, Eno Sukarno Putri, Gustita Arnawati Rakhmawati, Indri Rifa'i, Fitra Ahmad Rihmahwati, Melly Riyanto, Ari Fajar Rosalina Ananta, Rosalina S Mursiti Safrudin Yudowibowo Saiful Fatihin, Saiful Samsi Samsi Samuel Budi Wardana Kusuma, Samuel Budi Wardana Samuel Budi Wardhana Kusuma Saputra, Dewa Kahfi Sari, Hanifah Kartika Savitri, Retno Wahyu Sembiring, Rinawati Septiningsih, Ismawati Setyanavanny, Thessalonika Kris Setyaningrum, Rizka Indriani Setyawan Bekti Wibowo Sharif, Aisyah Mohamad Sigit Priatmoko Siti Istiningsih, Siti SITI MUSLIMAH WIDYASTUTI Soeadgihardo Siswantoro Soehartono Soehartono Sonya, Mellyaning Oktaviani Sonya Kirana Sari Sri Haryani Sri Nurhayati Sri Puji Lestari Sri Susilogati Sumarti Sri Wahyuni Sri Wahyuningsih Yulianti, Sri Wahyuningsih SRI WARDANI Sudarmin Sudarmin Sudarmin Sudarmin Sugiyanto - Sukarne, Sukarne Supartono - Supartono, Tono Supartono, Tono Supriyono Supriyono Surojo, Surojo Susanti Tasik Susanto, Aris Tri Susanto, Aris Tri Susatya, Eko Budi Sutaryono, Yusuf Akhyar Syahrial, Yoppi Syaifullah, Jahid Tri Handayani Tri Prasetya, Agung Ulya Dhina, Karina Octamardia Utami, Desi Tri Vebera Maslami Widada, Reza Ananda Widayani, Anis Widayani, Anis Widianto, Farhan Winta, Khoirin Woro Sumarni Yitno Puguh Martomo Yoga Budi Bhakti Yulianingsih, Prita Zahro, Ainu Ilmiatuz Zakki Adlhiyati