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All Journal Cakrawala Pendidikan Mimbar PGSD Undiksha Jurnal Infinity Jurnal Riset Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Phenomenon : Jurnal Pendidikan MIPA Media Penelitian Pendidikan : Jurnal Penelitian dalam Bidang Pendidikan dan Pengajaran AKSIOMA Al-Jabar : Jurnal Pendidikan Matematika Union: Jurnal Ilmiah Pendidikan Matematika Jurnal Obsesi: Jurnal Pendidikan Anak Usia Dini Jurnal Penelitian Pendidikan IPA (JPPIPA) PRISMA Jurnal Cendekia : Jurnal Pendidikan Matematika Mimbar Ilmu Journal on Education FIBONACCI: Jurnal Pendidikan Matematika dan Matematika Imajiner: Jurnal Matematika dan Pendidikan Matematika Science Education and Application Journal Community Development Journal: Jurnal Pengabdian Masyarakat Didaktik : Jurnal Ilmiah PGSD STKIP Subang International Journal of Research in Education (IJRE) Euclid Pelita: Jurnal Pengabdian kepada Masyarakat INTERNATIONAL JOURNAL OF ECONOMIC LITERATURE IndoMath: Indonesia Mathematics Education Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal of Mathematical Pedagogy (JOMP) Jurnal Medika: Medika Jurnal Infinity Edumaspul: Jurnal Pendidikan
Nurina Happy
Universitas PGRI Semarang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Energy Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Penerapan Pendekatan Teaching at The Right Level (TaRL) dengan Model Problem Based Learning (PBL) Guna Meningkatkan Hasil Belajar Matematika Siswa SMA Nila Azizatil Ludfiana; Sugiyanti Sugiyanti; Ganang Iqbal Riska; Nurina Happy
Journal on Education Vol 7 No 1 (2024): Journal on Education: Volume 7 Nomor 1 Tahun 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v7i1.6639

Abstract

This research is motivated by the low mathematics learning outcomes, which is a crucial issue in the development of education, particularly at SMA Negeri 9 Semarang. This study is an Action Research (PTK). The aim of this research is to determine whether Teaching at the Right Level (TaRL) with Problem-Based Learning (PBL) can improve students' mathematics learning outcomes. The subjects involved in this study were 36 students from class XII SMA N 9 Semarang. The research was conducted in two cycles. The results of the research show that teaching using the Teaching at the Right Level (TaRL) approach with Problem-Based Learning (PBL), starting from cycle 1 to cycle 2, resulted in an improvement in students' mathematics learning outcomes. In Cycle I, the percentage of learning outcomes reached 66.67%, which increased to 88.89% in Cycle II. The implementation of the Teaching at the Right Level (TaRL) approach with Problem-Based Learning (PBL) has proven to enhance the mathematics learning outcomes of students in class XII SMA N 9 Semarang.
OPTIMIZATION OF PRICING AND COST PLANNING USING LINEAR FUNCTIONS: AN ECONOMIC MATHEMATICS PERSPECTIVE ON FINANCIAL STRATEGY AT CAKE MY DAY Hery Saputra; Nina Zakiah; Nurina Happy
INTERNATIONAL JOURNAL OF ECONOMIC LITERATURE Vol. 3 No. 2 (2025): February
Publisher : Adisam Publisher

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

Abstract

Pricing and cost planning are critical aspects of business management, especially for small enterprises like the "Cakemyday" cake shop. Proper financial planning ensures sustainability and profitability in a competitive market. This study aims to analyze the financial feasibility of "Cakemyday" by calculating the Break-Even Point (BEP) and determining the optimal selling price based on cost structures and demand functions.A quantitative approach was employed, utilizing financial data, including fixed costs, variable costs, and demand function analysis. The BEP calculation determined the minimum number of units required to cover all expenses, while the demand function was derived from historical pricing and sales data to understand consumer behavior.The findings indicate that "Cakemyday" needs to sell 78 units to reach BEP, with a contribution margin of Rp 90,000 per unit. Furthermore, to achieve a profit target of Rp 3,000,000, an optimal selling price of approximately Rp 188,000 per unit was determined. The demand function analysis revealed a negative correlation between price and quantity demanded, supporting strategic pricing decisions.The study concludes that understanding financial metrics and consumer behavior is essential for sustainable business growth. It is recommended that "Cakemyday" implement targeted marketing strategies and monitor pricing dynamics to enhance profitability. Future research may explore external factors affecting demand and conduct comparative studies with similar businesses.
The Effectiveness of SAVI Learning Model Based on Flipped Classroom on Children's Problem Solving Ability Happy, Nurina; Mardiati, Mardiati; Hidayati, Nur; Latifah, Nur; Safira, Ifa; Sukini, Sukini; Sarnoto, Ahmad Zain; Sari, Windy Dian; Wantu, Hasyim Mahmud; Nugraha, Aat Ruchiat; Dewanto, Dewanto; Yastanti, Unpris; Santosa, Tomi Apra; Solissa, Everhard Markiano
Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/obsesi.v9i1.6753

Abstract

This study aims to determine the effectiveness of the flipped classroom-based SAVI learning model on children's problem-solving skills. This research is a type of meta-analysis research. The eligibility criteria in this study are: a) the research must be published in 2022-2024; b) this research was obtained through the Google Scholar database; Mendeley; ScienceDirect; and Wiley; c) the research must be relevant; d) the research must have complete data to calculate the effect size value; and the sample size > 30 participants. The data in this meta-analysis is analyzed with the help of JASP and Microsoft Excel applications. The results of the analysis of 19 effect sizes concluded that the summary effect size value ( d = 1.077 ; z = 8.172 ; p < 0.001) of the effect size category was strong. These findings show that the application of the effectiveness model of the flipped classroom-based SAVI learning model has a positive influence on children's problem-solving skills
Pre-Service Teacher’s Beliefs and Knowledge about Mathematics Muhtarom, Muhtarom; Happy, Nurina; Nursyahidah, Farida; Casanova, Anriany
Al-Jabar: Jurnal Pendidikan Matematika Vol 10 No 1 (2019): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v10i1.3617

Abstract

This research describes the knowledge and beliefs of pre-service teachers about mathematics. Data collection of this research using written test of 143 mathematics pre-service teachers who have taken six semesters at Universitas PGRI Semarang, and interviewing of three pre-service teachers who are not consistent between knowledge and belief. The data are presented in the form of descriptive quantitative and analyzed qualitatively, including data reduction, data display, and conclusions drawing/verification. The results show that most of the knowledge of pre-service teachers are consistent with their beliefs. It is indicated that pre-service teachers’ knowledge has been internalized into a strong belief that affect their words and behaviors. The belief of almost half of pre-service teachers who become respondents changes because of lecturer activity effect. It can say that belief changes at any time, both the process of alteration and the formation of new beliefs as well as the reinforcement of the beliefs they have. 
The Ethnics Engagement: Navigating Power Dynamic and Ethnical Considerations in Community Based Education Nahria, Nahria; Santosa, Tomi Apra; Dewanto, Dewanto; Happy, Nurina; Safira, Ifa
Jurnal Medika: Medika Vol. 4 No. 3 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/46csjy32

Abstract

social, cultural, and economic challenges faced by local communities(Yulianti, 2020); (Ali et al., 2024; Dewanto et al., 2023; Ichsan et al., 2023). This study examines ethnic involvement in community-based education by highlighting the power dynamics and ethical considerations that underlie the learning process and community empowerment. In the context of pluralistic community education, the involvement of ethnic groups is not only about participation, but also concerns bargaining positions, socio-cultural representation, and the challenges of maintaining justice and inclusivity. Through a qualitative approach based on literature studies and selected case studies, this study found that power inequality between education facilitators and local communities can hinder the process of social transformation. In addition, disregard for local values and norms often triggers resistance or misinterpretation of educational goals. Therefore, it is important to design a community-based educational approach that is sensitive to social dynamics, upholds participatory ethical principles, and strengthens community voices in decision-making. These findings recommend strengthening critical pedagogical practices that integrate local values with the goal of continuing education development.
Developing science inquiry skills in early childhood through coding games Munawar, Muniroh; Happy, Nurina; Roshayanti, Fenny; Setyoady, Yuris; Afif Luthfy, Perdana
Jurnal Cakrawala Pendidikan Vol. 44 No. 3 (2025): Cakrawala Pendidikan (October 2025)
Publisher : LPMPP Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/cp.v44i3.85086

Abstract

The 21st century requires education to equip students not only with academic knowledge but also with such as innovation, productivity, reasoning, programming, data literacy, problem-solving, and critical thinking, to face the rapid global changes. This study aims to develop science inquiry skills from early childhood to support children in mastering the competencies needed in the 21st century. The research employed a descriptive qualitative design. Data were collected from 16 preschools through observations, interviews, and documentation. NVivo was used for data management and analysis. NVivo is a software application that assist researchers in organizing, analyzing, and visualizing qualitative data. The results reveal that coding games can foster seven core science inquiry skills: arguing based on existing evidence, identifying problems, analyzing and interpreting data, evaluating and communicating, planning and conducting investigations, asking questions, and constructing explanations. This research recommends that more preschools integrate coding games into their learning activities, as they can effectively enhance children’s science inquiry skills, which are essential for their future academic and professional success.
The Effectiveness of SAVI Learning Model Based on Flipped Classroom on Children's Problem Solving Ability Happy, Nurina; Mardiati, Mardiati; Hidayati, Nur; Latifah, Nur; Safira, Ifa; Sukini, Sukini; Sarnoto, Ahmad Zain; Sari, Windy Dian; Wantu, Hasyim Mahmud; Nugraha, Aat Ruchiat; Dewanto, Dewanto; Yastanti, Unpris; Santosa, Tomi Apra; Solissa, Everhard Markiano
Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/obsesi.v9i1.6753

Abstract

This study aims to determine the effectiveness of the flipped classroom-based SAVI learning model on children's problem-solving skills. This research is a type of meta-analysis research. The eligibility criteria in this study are: a) the research must be published in 2022-2024; b) this research was obtained through the Google Scholar database; Mendeley; ScienceDirect; and Wiley; c) the research must be relevant; d) the research must have complete data to calculate the effect size value; and the sample size > 30 participants. The data in this meta-analysis is analyzed with the help of JASP and Microsoft Excel applications. The results of the analysis of 19 effect sizes concluded that the summary effect size value ( d = 1.077 ; z = 8.172 ; p < 0.001) of the effect size category was strong. These findings show that the application of the effectiveness model of the flipped classroom-based SAVI learning model has a positive influence on children's problem-solving skills
PKM PENDIDIKAN STEM-AR BAGI GURU MATEMATIKA DI KABUPATEN BATANG Happy, Nurina; Prayito, Muhammad; Ariyanto, Lilik; Safitri, Diah; Sari, Eliya Cicik Puspita
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 6 (2024): Vol. 5 No. 6 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i6.37303

Abstract

MGMP Matematika Kabupaten Batang telah berdiri sejak lama namun belum ada kesepakatan terkait pertemuan rutin dan rancangan kegiatan bagi pada anggotanya. Selain itu, para guru di MGMP Matematika Kabupaten Batang belum mengenal STEM-AR yang dapat diaplikasikan dalam pembelajaran matematika. Urgensi dan fokus kegaiatn pengabdian ini adalah memberikan pengetahuan aplikatif yang mengintegrasikan Science, Technology, Engineering, and Mathematics (STEM) dan Augmented Reality (AR) dalam pembelajaran matematika sehingga guru dapat mengembangkan Modul Ajar berbasis Pendidikan STEM-AR dan menerapkannya di kelas matematika. Tujuan dari kegiatan PKM ini adalah membentuk Komunitas Belajar STEM-AR dengan fokus pada bidang sosial kemasyarakatan dan manajemen melalui metode pelaksanaan (1) memberikan pelatihan STEM, AR, dan pembuatan Modul Ajar berbasis Pendidikan STEM-AR, dan (2) penerapan hasil pelatihan dalam mengembangkan Modul Ajar berbasis Pendidikan STEM-AR. Kegiatan PkM Pendidikan STEM-SR bagi Guru Matematika di Kabupaten Batang telah terlaksana hingga pelaksanaan penggunaan teknologi tepat guna. Pada kegiatan pelatihan, Guru SMA di Kabupaten Batang telah memahami dengan baik terkait pendidikan STEM, AR, dan pengembangan modul ajar berbasis STEM-AR. Sudah 100% guru matematika di Kabupaten Batang telah mampu mengembangkan modul ajar berbasis STEM-AR. Guru Matematika Kabupaten Batang juga telah menerapkan pembelajaran berbasis STEM di kelas matematika, namun memang masih perlu ditingkatkan agar pembelajaran dapat berjalan lebih efektif. Siswa dalam kelas tampak antusias dengan pembelajaran berbasis STEM ini karena merupakan pengalaman baru bagi mereka. Perlu adanya perbaikan berkelanjutan dalam proses pembelajaran sehingga kelas menjadi lebih efektif.
The use of teaching props to improve mathematics learning outcomes in number pattern material in STEM village Yogyakarta Ariana, Fika; Prayito, Muhammad; Happy, Nurina; Wirani, Wisnuningtyas
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 1 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i1.16991

Abstract

Since mathematics is an abstract discipline, it is necessary to understand context when learning. This pilot study at SDN 1 Kentungan, a "STEM Village" in Joho Village, Yogyakarta, aims to determine the impact of stick-board teaching aids on second-grade students' mathematics learning results in number patterns. The devices used for collecting data include pre-tests and post-tests, interview sheets, observation sheets, and other methods. Meanwhile, the small set of test participants consisted of two SD N 1 Kentungan class II students who attended the STEM Village in Kampung, Joho. The conclusions of this descriptive study show the following: (1) the way teaching tools are used affects how number patterns are taught to primary school pupils; when instructional aids are utilized to assist students in learning a subject more easily and contextually, they are guided by more than just formulas. (2) Students perform better on their pretest and posttest. (3) Students' understanding improves after using visual aids compared to before using them. (4) Students become more curious and engaged in the learning process. The results of the study suggest that class II students at SDN 1 Kentungan benefit from using instructional aids, which are regarded as compelling and well-done.
STEM application in miniature bridge making can sharpen children's critical thinking patterns Agustin, Indah Wahyu; Happy, Nurina; Prayito, Muhammad; Hidayah, Miftahul
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 1 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i1.17100

Abstract

To improve the skills required for students in the 21st century, such as basic skills, competencies, and character, mathematical literacy is one of the critical factors. With the application of STEM, students are expected to be able to think critically so that they can improve their mathematical literacy skills. This research used a descriptive qualitative method with subjects aged 3–9 years in Joho Village, D.I. Yogyakarta, Indonesia. In this study, data was collected using three methods: observation, interview, and documentation. The instruments used include a critical thinking scale, an observation guide, and an interview guide. The results obtained from this study indicate that applying STEM can hone students' critical thinking skills. Two classifications were obtained by applying STEM, namely groups with high and average levels of critical thinking. Students can identify given problems, formulate the core of the problem, provide solutions based on a problem, draw conclusions, and evaluate relevant arguments for solving a problem. Thus, research is expected to provide a strong foundation for applying STEM-based learning to enrich students' mathematical learning experiences and prepare them for future challenges in the age of globalization towards Indonesia in 2045.
Co-Authors .Dewi, Sinta Verawati Aat Ruchiat Nugraha Aat Ruchiat Nungraha Ade Ricky Rozzaqi Agnita Siska Pramasdyahsari, Agnita Siska Agung Handayanto Agung Handayanto Agustin, Indah Wahyu Ahmad Zain Sarnoto Anak Agung Istri Sri Wiadnyani Andi Priyolistiyanto Anriany Casanova Anwar Manahor Ariana, Fika Aris, Muhammad Hamdan Ariyani, Arneta Mayandha Aula Amalia Azizah, Linda Ilmi Rahmah Bagus Ardi Saputro Bagus Ardi Saputro, Bagus Bungkus Dias Casanova, Anriany DEWANTO Dewanto Dewanto Dewi, Sinta Verawati Dhian Endahwuri, Dhian Diah Safitri Dinahyu Arifah Yuniar Djamilah Bondan Widjajanti EFENDI Fairuz Amin Fajar Prasetio Bayu Nugroho Falakhudin, Fahmi Arif Farida Nursyahidah Fenny Roshayanti FX Didik Purwosetiyono Ganang Iqbal Riska Heni Purwati Heni Purwati Henny Sanulita Heppy Sapulete hery saputra Hidayah, Laili Nurul Hiola, Siti Fatimah Ifa Safira Irkham Ulil Albab Lilik Ariyanto Manahor, Anwar Mardiati Mardiati Maulina, Julia Miftahul Hidayah, Miftahul Muh. Safar Muhammad Prayito Muhtarom Muniroh Munawar Mustafridatun Nasihah Nahria Nahria, Nahria Nila Azizatil Ludfiana Nina Zakiah Nizaruddin . Nizaruddin Nizaruddin Noora Qotrun Nada, Noora Qotrun Noviya Astika Man Ayu Nur Hidayati Nur Latifah Nur Latifah, Nur Perdana Afif Luthfy Praptining Rahayu ., Praptining Rahayu Rafiqoh, Sri Rasiman Rasiman Retno Cahyanti Riska, Ganang Iqbal Rizky Esti Utami, Rizky Esti Rofian, Rofian RR. Ella Evrita Hestiandari Santosa, Tomi Apra Sapulete, Heppy Sari, Eliya Cicik Puspita Sari, Windy Dian Setyoady, Yuris Setyowati, Khoirunisak Siti Fatimah Hiola Siti Fatimah Hiola Solissa, Everhard Markiano St. Fatmah Hiola Sugiyanti Sugiyanti Sukini, Sukini Sutrisno Sutrisno Tomi Apra Santosa Tomi Apra Santosa Umi Sya&#039;adah Unpris Yastanti Unpris Yastanti, Unpris Utami, Salma Millenia Via Yustitia Wantu, Hasyim Mahmud Wicaksono, Khoirul Anam Dwi Widya Kusumaningsih Wirani, Wisnuningtyas Wiwik Susanti Yanuar Hery M Yanuar Hery Murtianto Yanuar Hery Murtianto Yuzaefa, Aina Dinda zakiah, Nina Zuhri Zulfa Faiqotun Alfin