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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Ilmiah WUNY Journal of Educational, Health and Community Psychology Jurnal Inovasi Pendidikan IPA Jurnal Biodjati JIPF (Jurnal Ilmu Pendidikan Fisika) JURNAL TARBIYAH JURNAL EKSAKTA PENDIDIKAN (JEP) Walisongo Journal of Chemistry JKPK (Jurnal Kimia dan Pendidikan Kimia) ANIMA Indonesian Psychological Journal Jurnal Ilmiah Kanderang Tingang JPPS (Jurnal Penelitian Pendidikan Sains) Journal of Educational Chemistry (JEC) JURNAL PENDIDIKAN, SAINS DAN TEKNOLOGI SPIN: Jurnal Kimia & Pendidikan Kimia Journal of Natural Sciences Arfak Chem: Chemistry Education Journal Jurnal Pemberdayaan Masyarakat Panrita Inovasi: Jurnal Pengabdian Kepada Masyarakat Jurnal Penelitian Bookchapter Alam Universitas Negeri Semarang Proceeding Seminar Nasional IPA JUPEMA Jurnal Dharma Indonesia Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Abdimas Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Jurnal Dharma Indonesia Journal of Environmental and Science Education Jurnal Abdi Negeri
Rizki Nor Amelia
Universitas Negeri Semarang
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Physics Public Health Social Sciences Other

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ANALISIS PEMAHAMAN KONSEP MATERI BIOTEKNOLOGI PADA SISWA KELAS XII SMA Nugraini, Anisa Ratna; Amelia, Rizki Nor
Proceeding Seminar Nasional IPA 2023
Publisher : LPPM UNNES

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

Abstract

Pembelajaran bioteknologi identik dengan pembelajaran yang mengedepankan kemampuan dalam menganalisis prinsip-prinsip bioteknologi, serta aplikasinya untuk meningkatkan kesejahteraan kehidupan manusia. Penguasaan materi bioteknologi siswa masih banyak yang mengalami kesulitan. Pembekalan ilmu bioteknologi sangat penting, supaya siswa dapat mengimplementasikan prinsip-prinsip bioteknologi untuk menciptakan produk bioteknologi yang mempunyai nilai guna tinggi. Penelitian ini dilakukan untuk menganalisis pemahaman konsep materi bioteknologi pada siswa, sehingga dapat digunakan sebagai referensi untuk meningkatkan efektivitas pembelajaran bioteknologi. Jumlah sampel pada penelitian ini adalah 50 siswa yang diambil secara acak. Teknik pengumpulan data berupa observasi, wawancara, dan tes diagnostik materi bioteknologi. Hasil analisis pemahaman konsep bioteknologi berdasarkan indikator pencapaian kompetensi tergolong cukup dengan rata-rata presentase sebesar 67 %. Alasan siswa dalam memberikan jawaban yang kurang tepat karena pengetahuan yang didapat oleh siswa masih sebatas teoritis hafalan dari buku tanpa didukung dengan kegiatan pembelajaran secara nyata dan interaktif, seperti praktikum, diskusi kelompok dan presentasi. Oleh sebab itu, diperlukan upaya untuk meningkatkan pemahaman siswa melalui kegiatan belajar mengajar secara aktif antara guru dan siswa.
Psychometric Characteristics of the Kalam Cognitive Test (KCT): An Andrich Rating Scale Analysis Kriswantoro; Amelia, Rizki Nor
JURNAL PENELITIAN Vol. 20 No. 1 (2023)
Publisher : Universitas Islam Negeri K.H. Abdurrahman Wahid Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28918/jupe.v20i1.1098

Abstract

The science of Kalam is one of the compulsory courses for prospective Islamic teachers, and mastery of this material is very important. Therefore, the measurement instrument used must have good psychometric characteristics to accurately reflect the abilities of prospective Islamic teachers. The purpose of this study is to analyze the psychometric characteristics of the Kalam Cognitive Test (KCT), which has been developed with the Andrich Rating Scale and assisted by the Winsteps program. The research, which was conducted in the spring semester of the 2022–2023 academic year, involved 44 prospective Islamic religion teacher students in the Islamic Religious Education Study Program at Jambi Ma'arif Islamic College who were selected through cluster random sampling techniques. The results of the analysis show that the KCT has good psychometric characteristics in terms of fulfilling the assumptions of the analysis, item reliability, person reliability, and item difficulty level. Related to the rating scale analysis, it can also be concluded that all rating scale categories have met the required criteria so that they have functioned properly.
Development of the Maze Chase Game in Guided Discovery Learning on Student Learning Outcomes Sodiqi, Kholillah Intan Sari; Parmin; Widiyatmoko, Arif; Amelia, Rizki Nor
Journal of Environmental and Science Education Vol. 4 No. 1 (2024): Journal of Environmental and Science Education : April 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jese.v4i1.638

Abstract

Student learning outcomes have an important role in shaping students into careful and skilled individuals. As times progress, technological advances must be balanced with students' cognitive learning outcomes to create an advanced young generation. Improving the learning model towards deficiencies in the learning model such as deficiencies in the guided discovery learning model by considering technological advances aims to maximize student learning outcomes. The aim of the research was to determine the validity of the maze chase game media developed and the differences in the use of maze chase game media development in guided discovery learning between the experimental class and the control class. The development method in this development research is divided into three stages, namely define, design, and develop, while the differentiation test uses a quasi-experimental research design using the pretest-posttest control group design method. The research location is at SMP Negeri 23 Semarang with a sample of class VII A as the experimental class and class VII B as the control class at SMP Negeri 23 Semarang for the 2022/2023 academic year. The data collection technique uses purposive sampling technique and data collection uses test and non-test instruments in the form of questionnaires. The non-test instrument is used to determine the quality of the maze chase game media which shows valid quality, very good readability and very practical practicality. In the test data, there was an increase in N-Gain in the experimental class which was higher than the control class by 0.13 in the medium category. The results of the differentiation test using the Independent Sample T Test showed that there was a significant difference between the experimental class and the control class with a tcount>ttable value of 1.98.
Qualitative analysis of cyclamate in iced tea using varying BaCl2 concentrations: A descriptive study in sekaran raya Aryati, Nur Indah; Ariyanti, Diva Fitria; Yolanda, Helen; Sa’diyah, Chalimatus; Amelia, Rizki Nor
Arfak Chem: Chemistry Education Journal Vol. 8 No. 1 (2025): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/accej.v8i1.930

Abstract

Cyclamate is one type of artificial sweetener that is widely used in beverages. However, excessive consumption can hurt health. This study aims to determine the presence of cyclamate content in iced tea products sold in the Sekaran Raya area around the campus of Semarang State University. The method used was descriptive research through qualitative analysis in the Integrated Science Laboratory with the precipitation technique. Three samples of iced tea drinks and one positive control sample (with cyclamate added) were analyzed by adding barium chloride (BaCl2) reagent in an acidic atmosphere, with concentrations of 10% and 30%, respectively. The test results showed that one of the samples, iced tea sample RY, formed a white precipitate, indicating the presence of cyclamates, where 30% BaCl₂ produced more precipitate than 10% BaCl₂. This finding suggests that precipitation techniques with higher concentrations of BaCl₂ can improve the visibility of cyclamate detection. However, it should be noted that increasing the concentration of BaCl₂ is not always directly proportional to the identification quality because too high a concentration can cause interference and interfere with the clarity of the observation results.
Sosialisasi dan Percepatan Penanggulangan Stunting Melalui Pemberian Makanan Tambahan pada Balita di Grogolan, Boyolali: (Socialization and Acceleration of Stunting Reduction by Providing Additional Food to Toddlers in Grogolan, Boyolali) Amelia, Rizki Nor; Dewi, Evi Indah Kusuma; Saleh , Muhammad; Kurniawan, Tri Prasetyo Adam
Jurnal JUPEMA Vol. 4 No. 1 (2025): May 2025
Publisher : Laboratorium Pembelajaran FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jupema.v4i1.37854

Abstract

Stunting is one of the threats to human quality and is also considered a threat to the competitiveness of a nation. This community service aims to socialize the understanding of stunting and apply this understanding in the form of Providing Additional Food (PMT) to toddlers who are classified as and at risk of stunting. The method used in this activity is a combination approach of community education methods and diffusion of science and technology. After the socialization, 80% of respondents understood stunting well, 66.67% of respondents understood PMT well, and 60% of respondents understood the techniques of processing food ingredients to be used as additional food products or complementary foods for toddlers well. In the end, in general, the program from the UNNES GIAT 6 KKN team ran smoothly and successfully, as evidenced by the positive responses of the participants. Abstrak. Stunting menjadi salah satu ancaman terhadap kualitas manusia dan juga dianggap sebagai ancaman terhadap kemampuan daya saing suatu bangsa.Pengabdian kepada masyarakat ini bertujuan untuk mensosialisasikn pemahaman terhadap stunting dan mengaplikasikan pemahaman tersebut dalam bentuk Pemberian Makanan Tambahan (PMT) kepada balita yang tergolong dan berisiko stunting. Metode yang digunakan dalam kegiatan ini adalah pendekatan kombinasi dari metode pendidikan masyarakat dan difusi IPTEKS. Setelah dilakukan sosialisasi, 80% responden telah memahami stunting dengan baik, 66,67% responden memahami PMT dengan baik, dan 60% responden memahami teknik pengolahan bahan makanan untuk dijadikan produk makanan tambahan atau makanan pendamping bagi balita dengan baik. Pada akhirnya, secara umum program dari tim KKN UNNES GIAT 6 berjalan dengan lancar dan sukses yang dibuktikan dari respon positif peserta.
EKSPLORASI POTENSI SPIRULINA DALAM PENANGANAN LIMBAH OLI BEKAS KENDARAAN Amalia, Andin Vita; Haris, Amnan; Heriyanti, Andhina Putri; Amelia, Rizki Nor; Rifa’atunnisa, Rifa’atunnisa; Soeprobowati, Tri Retnaningsih; Christwardana, Marcelinus
Bookchapter Alam Universitas Negeri Semarang Vol. 5 (2025)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ka.v5i1`.273

Abstract

Oli merupakan pelumas mesin kendaraan bermotor yang memiliki peran penting dalam menjaga kinerja dan umur panjang mesin. Namun, setelah digunakan, oli bekas harus segera diganti karena sifatnya yang sudah terdegradasi dan mengandung berbagai kontaminan berbahaya. Sayangnya, pengelolaan limbah oli bekas di masyarakat masih sangat terbatas. Oli bekas umumnya hanya dimanfaatkan untuk melumasi baut dan rantai, dicampur dengan solar sebagai bahan bakar alternatif, atau bahkan dibuang dan ditampung tanpa proses pengolahan yang memadai. Hal ini berpotensi menimbulkan pencemaran lingkungan, terutama karena kandungan bahan kimia beracun dan logam berat yang dapat mencemari tanah dan badan air. Salah satu pendekatan yang mulai dikembangkan untuk mengatasi permasalahan ini adalah pemanfaatan mikroorganisme seperti mikroalga. Spirulina, salah satu jenis mikroalga, diketahui memiliki kemampuan sebagai agen bioremediasi yang efektif karena mampu menyerap polutan (bertindak sebagai sorben), mengubah senyawa berbahaya menjadi bentuk yang lebih aman, serta mengakumulasikannya dalam struktur tubuhnya. Spirulina telah berhasil digunakan untuk mengolah berbagai jenis limbah, seperti limbah tahu, minyak jelantah, dan limbah industri batik. Karakteristik limbah oli yang memiliki kemiripan dengan minyak jelantah, terutama karena keduanya berasal dari fraksi minyak bumi, maka spirulina memiliki potensi besar untuk digunakan dalam bioremediasi limbah oli bekas.
Infusing Learners' Problem-Solving Skills Through Problem-Based Learning Model Assisted Socio-Scientific Issues (SSI) Worksheet on Environmental Pollution Tariza Putri Alpianti, Neng; Nor Amelia, Rizki
JPPS (Jurnal Penelitian Pendidikan Sains) Vol. 13 No. 2 (2024)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v13n2.p83-99

Abstract

Problem-solving skills are an essential part of science learning because these skills guide students in discovering science concepts to make learning more meaningful. Objectives: This study aims to test whether there is a significant difference in students' problem-solving skills before and after the application of the Problem-Based Learning Model assisted by the Socio-Scientific Issues (SSI) Worksheet and test whether there is a significant difference in the improvement of students' problem-solving skills between the experimental class and the control class. Method:  This study applied the pre-test-post-test control group design on two classes (64 students) taken by cluster random sampling. Data collection techniques in this research used observation, interviews, tests, and documentation methods. Then, the data obtained was analyzed using the homogeneity test, normality test, dependent t-test, independent t-test, and N - Gain test. The instrument used was a problem-solving test in the form of an essay proven to have good psychometric characteristics. Results:  The results showed a significant difference in students' problem-solving skills before and after applying the Problem-Based Learning Model assisted by the Socio-Scientific Issues (SSI) Worksheet. There was a significant difference in improving students' problem-solving skills between the experimental class (N-Gain high category) and the control class (N-Gain medium category). Thus, the SSI Worksheet integrated into the PBL model effectively improves students' problem-solving skills. Novelty: Previous research has not used SSI Worksheets integrated into the PBL model to train students' problem-solving skills.
ThermoLab for STEM: An Interactive 3D Virtual Lab to Strengthen Students’ Computational Thinking in Heat, Temperature, and Expansion Wintribrata, Bunaya Hanif; Amelia, Rizki Nor; Listiaji, Prasetyo
JPPS (Jurnal Penelitian Pendidikan Sains) Vol. 14 No. 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v14n2.p138-156

Abstract

Computational Thinking Skills are among the essential competencies students must master to face the challenges of the digital era. Unfortunately, digital learning media that can effectively enhance students' Computational Thinking Skills, especially through the visualization of abstract science concepts, are still limited. Objectives: This study aims to analyze the feasibility, characteristics, and impact of a STEM-based 3D virtual laboratory on students' computational thinking skills in the topic of temperature, heat, and expansion. Methods:  The 3D virtual laboratory was developed using Unity and guided by the ADDIE development model. Results: The media feasibility score was very feasible, and the readability score was well understood. The 3D laboratory had excellent characteristics across five key features: accessibility, observability, realistic scenario simulation, realism, and isolation. In general, computational thinking skills improved, where male students (84.38%) outperformed female students (80.67%), in terms of abstraction, pattern recognition, algorithmic thinking, and generalization, while females were more dominant in decomposition. Novelty: The resulting STEM-based 3D virtual laboratory offers an immersive approach to strengthen Computational Thinking Skills and differs from previous studies that generally only focus on interactive simulations .  
Exploring Biochar Briquettes from Biomass Waste for Sustainable Energy Heriyanti, Andhina Putri; Bakri, Sitty Nur Syafa; Jabbar, Abdul; Kholil, Putri Alifa; Amelia, Rizki Nor; Savitri, Erna Noor; Rifaatunnisa; Siti Herlina Dewi; Habil Sultan
Advance Sustainable Science Engineering and Technology Vol. 7 No. 3 (2025): May - July
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i3.1311

Abstract

The increasing demand for renewable energy necessitates sustainable alternatives such as biochar briquettes derived from agricultural waste. This study aims to optimize the production process and evaluate the physical, mechanical, and combustion properties of biochar briquettes made from corn residues, rice husks, and coconut shells. The methodology includes biomass carbonization, binder ratio optimization, and systematic testing of key quality parameters such as moisture content, density, ash content, and calorific value. Results indicate that an optimal biomass-to-binder ratio yields a high calorific value (7,192 kcal/kg) and low ash content (3.57%), enhancing combustion efficiency. Maintaining moisture content below 10% enhances ignition and prolongs burning time. These findings highlight biochar briquettes' role in carbon sequestration, biomass conversion, and sustainable waste management, supporting the circular economy and reducing environmental pollution. Biochar briquettes offer a clean, accessible energy solution, contributing to global energy security and climate change mitigation.
Developing a classification of living things e-module with a jelajah alam sekitar approach to help students reduce misconceptions and strengthen scientific literacy Illah , Khofiatul; Amelia, Rizki Nor
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol. 10 No. 01 (2025): Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Publisher : Biology Education Department, Universitas Insan Budi Utomo, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/ebio.v10i01.1224

Abstract

One strategy to reduce misconceptions and strengthen science literacy in the classification of living things is to facilitate students with contextual learning resources. Therefore, this study aims to develop an e-module as a learning resource that is integrated with the approach of Jelajah Alam Sekitar (JAS) so as to enable students to understand science concepts through collaborative practices of nature exploration. This research method is research and development using the 4D development model (define, design, develop, and disseminate). Class VII students at MTs Ishthifaiyah Nahdliyah were involved as samples with details of 180 students as the standardization test sample of the integrated science misconception-literacy instrument, 29 students as the e-module readability sample, and 32 students as the e-module implementation sample.  Data collection was carried out using interviews, a questionnaire, and student science literacy and misconception tests. The instruments used included interview guidelines, e-module characteristic questionnaires, e-module feasibility questionnaires, student response questionnaires, and pretest-posttest questions. Data analysis for the effectiveness of the e-module on student science literacy and misconceptions was performed using a paired t-test. The developed JAS E-module proved to be very feasible in terms of material concept, presentation, language, and graphics, and had excellent characteristics in terms of module characteristics, JAS components, and activities that contained indicators of misconceptions and science literacy. In addition, based on the results of the effectiveness test, in general, the e-module proved significant in reducing misconceptions (p<.05; t=-4.818; df=31) and strengthening students' science literacy (p<.05; t=4.636; df=31). Thus, this development contributes to improving science learning, especially in reducing misconceptions and strengthening science literacy.
Co-Authors Abdul Jabbar Abdul Jabbar Aji, Septiko Alma’ruf, Fattah Amnan Haris Amnan Haris Andin Vita Amalia Andin Vita Amalia, Andin Vita Anggi Ristiyana Puspita Sari Anggi Ristiyana Puspita Sari Anggi Ristiyana Puspita Sari Anggi Ristiyana Puspita Sari Anggi Ristiyana Puspitasari Anggita, Anggita Ardhani, Nadia Eka Ardiana Ulfatun Ni’mah Arif Widiyatmoko, Arif Ariyanti, Diva Fitria Aryati, Nur Indah Atmaja, Bagus Dwi Atunnisa, Rifa' Ayu Rahayu Bakri, Sitty Nur Syafa Damayanti, Tiara Dewi, Evi Indah Kusuma Dewi, Novi Ratna Dian Normalitasari Purnama Dita Seplita Sari Endah Retnowati Erna Noor Savitri, Erna Noor Farida Agus Setiawati Fauziyyah, Istiqomah Ifnan Febriyanto, Hendra Fidia Fibriana Habil Sultan Hadi, Surtini Haris, Amnan Hendra Hendra Heri Retnawati Heriyanti, Andhina Putri Ika Nur Fitriani Ika Nur Fitriani Illah , Khofiatul Intan Rahmalia Istiqomah Ifnan Fauziyyah Jauha Khoirun Nisa Karlinda Karlinda Karlinda Khoiriyah, Rohmatul Kholil, Putri Alifa Kriswantoro Kriswantoro Kurniawan, Tri Prasetyo Adam Listiaji, Prasetyo Lutfia Nur Hadiyanti, Lutfia Nur Luthfi Hanum Saputri M Fikri Amrullah Marcelinus Christwardana Muliana, Putri Dinda Najwa, Rizqa Naufal, M Ahganiya Naufal, Muhammad Agnaf Nihayatul Bidayah Nisa, Jauha Khoirun Novi Ratna Dewi Nugraini, Anisa Ratna Parmin Parmin Parmin Pradama, Daffa Evan Puspitasari, Anggi Ristiyana Putri Dinda Muliana Rafidah, Zahra Rahman, Nor Farahwahidah Abdul Rasendriya, Farica Ratna Dewi, Novi Revalina, Aurelia Dias Nanda Riza Arifudin Rizka Nurwakhidah Safitri, Salma Nuraini Sajidi, Imam Saleh , Muhammad SAMSUL HADI Sa’diyah, Chalimatus Shoba, Tafuz Mahabatis Siti Herlina Dewi Siti Rohmah Nurhayati Sodiqi, Kholillah Intan Sari Sofia, Aya Sri Ngabekti Sri Rejeki Dwi Astuti Sukirno Sukirno Sukmawati, Revi Tariza Putri Alpianti, Neng Tiara Damayanti Tiara Dwi Wulandari Dwi Tirtasari, Ni Luh Titik Ismiyati Tri Retnaningsih Soeprobowati Trida Ridho Fariz Trida Ridho, Fariz Wicaksana, Dhafa Satrio Rizki Widianingrum, Risti Ayu Wintribrata, Bunaya Hanif Yolanda, Helen Yulia Ayriza Zahra Rafidah Zahwa, Aisha Innayatul