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All Journal Jurnal S2 Pendidikan Matematika AlphaMath: Journal of Mathematics Education Union: Jurnal Ilmiah Pendidikan Matematika Wacana Akademika : Majalah Ilmiah Kependidikan Jurnal Pembelajaran Matematika Academy of Education Journal Intersections: Jurnal Pendidikan matematika dan matematika Indo-MathEdu Intellectuals Journal Edumatika Kurnia Mengabdi (jurnal Pengabdian Kepada Masyarakat) Gemi: Jurnal Penelitian dan Pengabdian
Prihastini Oktasari Putri
Unicersitas Cokroaminoto Yogyakarta
Religion Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Other

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The Effect of Model Discovery Learning on Students’ Self-Efficacy and Student Learning Outcomes Rina Febriana; Prihastini Oktasari Putri; Hafizah Delyana
AlphaMath : Journal of Mathematics Education Alphamath: Vol. 9, No. 2, November 2023
Publisher : Department of Mathematics Education, Universitas Muhammadiyah Purwokerto, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/alphamath.v9i2.19498

Abstract

One of the factors that influences a person's level of success in the learning process is self-efficacy. Low self-efficacy and student learning outcomes in the learning process are the background for this research. In order for student self-efficacy and learning outcomes to increase, there needs to be a learning process that makes students learn meaningfully, one of which is the model discovery learning. The purpose of writing the article is to see whether there is an increase in student self-efficacy after implementing the discovery learning model and whether there are differences in learning outcomes between the application of the model discovery learning and student learning outcomes using the scientific approach. The method in this research uses experimental research methods with research instruments in the form of questionnaires given to students before and after the learning process using discovery learning models and learning outcomes tests. Based on the calculations, it was found that there is an increase in students' self-efficacy after applying the model discovery learning, with a value  of 0.43 categorized as a "moderate" improvement. This indicates that the discovery learning model positively contributes to enhancing students' self-confidence. This means that there is an increase in student self-efficacy by implementing the model discovery learning. For student learning outcomes, the calculation results obtained are ????ℎ???????????????????? = 2.38 and ???????????????????????? = 1.67. This means that student learning outcomes by applying the model discovery learning are better than by applying learning using the scientific approach.
Home Visit Berbasis Cooperative Learning untuk Meningkatkan Optimalisasi Pembelajaran Matematika Putri, Prihastini Oktasari
Indo-MathEdu Intellectuals Journal Vol. 5 No. 2 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i2.980

Abstract

This research aims to implement home visits based on the cooperative learning model as an innovative strategy to enhance the optimization of mathematics learning. The study involves students from SMP N 2 Karangsambung as research subjects. Data collection techniques include tests, interviews, and documentation. This research adopts the action research approach, involving cycles of planning, action, observation, and reflection. The results of the study indicate that the implementation of home visits with the cooperative learning model positively contributes to the optimization of mathematics learning. Concrete steps involve collaboration between teachers, students, and families to create a supportive learning environment. Classically, there has been an increase in the percentage of student learning mastery, with figures rising from 38.46% at the initial stage of the study (pre-cycle) to 50% in Cycle I, and further escalating to 76.92% in Cycle II. Additionally, there has been an enhancement in the overall student grade average, starting from 58.65 at the initial stage of the study to 69.80 in the first cycle, and then increasing to 79.03 in the second cycle. Both parameters, the percentage of learning mastery and the average student grade, in the second cycle have met the standards set as indicators criteria established
Implementasi Model Pembelajaran Team Game Tournament (TGT) Untuk Meningkatkan Hasil Belajar Siswa Putri, Prihastini Oktasari
Intersections Vol 4 No 2 (2022): Intersections : Jurnal Pendidikan Matematika dan Matematika
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47200/intersections.v4i2.496

Abstract

This study aims to: (1) find out how to apply the Team Game Tournament (TGT) type cooperative model in learning mathematics. (2) determine whether using the cooperative model type Team Game Tournament (TGT) can improve student mathematics learning outcomes. The type of research used is Classroom Action Research (CAR). The sample in this study were all grade V students of SD Negeri 1 Plumbon in the academic year 2019/2020 as many as 24 students. The instruments used in this study were observation, documentation and student achievement tests Based on the results of the study, it was concluded that: the use of a cooperative model type Team Game Tournament (TGT) can improve student learning outcomes in mathematics class V SD Negeri 1 Plumbon. This can be shown in the final cycle test results obtained a significant increase in value, meaning that the learning process of mathematics using the cooperative model type Team Game Tournament (TGT), the class average value has increased with the results in the pre-cycle of 51.625; cycle I amounted to 63.75 and cycle II amounted to 75.625. With the percentage of completeness in the pre-cycle of 29.17%, the first cycle of 50% and the second cycle of 79.17%.
IMPLEMENTASI MEDIA PEMBELAJARAN KOMIK MATEMATIKA UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA Putri, Prihastini Oktasari; Hidayati, Ika Septi; Febriana, Rina
Intersections Vol 8 No 1 (2023): Intersections : Jurnal Pendidikan Matematika dan Matematika
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47200/intersections.v8i1.1534

Abstract

Penelitian ini bertujuan untuk meningkatkan hasil belajar matematika siswa dengan menggunakan media pembelajaran berupa komik matematika. Jenis penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK). Penelitian Tindakan Kelas ini dilakukan pada siswa kelas VII SMP Negeri 2 Karangsambung yang berjumlah 26 siswa. Instrumen yang digunakan pada penelitian ini adalah observasi, dokumentasi dan tes. Adapun hasil penelitian tindakan ini menunjukkan bahwa hasil belajar matematika siswa kelas VII di SMP Negeri 2 Karangsambung mengalami peningkatan pada setiap siklusnya. Secara klasikal terdapat peningkatan persentase ketuntasan belajar siswa yaitu dari 38,46% pada prasiklus menjadi 50% pada siklus I dan meningkat menjadi 76,92% pada siklus II. Selain itu, rata-rata nilai siswa secara klasikal juga mengalami peningkatan yaitu 58,65 pada prasiklus menjadi 69,80 pada siklus I dan meningkat menjadi 79,03 pada siklus II. Baik secara persentase ketuntasan belajar maupun rata-rata nilai siswa pada siklus II telah memenuhi kriteria keberhasilan yang ditetapkan. Penggunaan media pembelajaran komik matematika dalam pembelajaran matematika terlaksana dengan baik dan memenuhi kriteria yang ditetapkan pada siklus II.
Optimalisasi Penerapan Metode Bermain Flashcard untuk Meningkatkan Pemahaman Konsep Bilangan Putri, Prihastini Oktasari; Sitorus, Siska Mariana; Hidayati, Ika Septi
Indo-MathEdu Intellectuals Journal Vol. 6 No. 1 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i1.2619

Abstract

Introducing children to mathematics is an urgent matter. Most children in the B-Luke class at TK Kristen Kalam Kudus Pematang Siantar struggle to understand number concepts, even though they can count. Therefore, this study aims to use flashcards as a playful medium to help children understand number concepts from 1 to 20. This is a classroom action research with two cycles. The subjects were 11 children from the B-Luke class. Data were collected through observation, post-class tests, and documentation. The data analysis shows that the initial concept understanding ability, which was predominantly at the Developing (MB) level (55%), increased to an average of Very Well Developed (BSB) at 64%. This demonstrates an improvement in understanding number concepts through the use of flashcards and playful methods.  
Media Puzzle Sebagai Strategi Kreatif untuk Meningkatkan Hasil Belajar Kognitif Peserta Didik pada Materi Penjumlahan Putri, Prihastini Oktasari; Khoeriah, Siti Sifa
Indo-MathEdu Intellectuals Journal Vol. 6 No. 4 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i4.3770

Abstract

Mathematics learning at the elementary school level plays a crucial role in building a foundation for students logical thinking abilities. However, addition of numbers greater than 10 remains a challenge due to the cognitive limitations of students who are at the concrete operational stage. The aim of this study is to enhance students cognitive understanding through a creative strategy using puzzle media. This research was conducted using a Classroom Action Research (CAR) approach. The subjects of the study were 37 first-grade students at SDN Cintaasih. Data were collected through written test instruments. The results showed that students mastery increased from 40.5% in the pre-cycle, to 67.5% in the first cycle, and reached 86.4% in the second cycle. It can be concluded that first grade students at SDN Cintaasih experienced an improvement in cognitive learning outcomes in addition material after using puzzle media.
Pelatihan Peningkatan KeterampilanMatematika dan Etika Kewarganegaraan dalamMempersiapkan Lulusan Sarjana Kusumawati, Intan; Putri, Prihastini Oktasari; Paiman
Kurnia Mengabdi: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 1 (2025): Kurnia Mengabdi: Jurnal Pengabdian kepada Masyarakat
Publisher : CV. Kurnia Grup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61476/bm69ne07

Abstract

Given the challenges of the working world and the demands of professionalism as prospective educators, students are required not only to master academic competencies, but also to possess logical thinking skills and moral and ethical integrity as citizens. This community service activity aims to improve basic mathematical skills and an understanding of civic ethics for prospective undergraduate students of the Faculty of Teacher Training and Education (FKIP), Cokroaminoto University, Yogyakarta. This training method provides participants with intensive material in two main areas: strengthening basic mathematical concepts and applying them, and instilling civic ethics values in the context of national and state life. The training method is carried out in a participatory manner through an andragogical approach, group discussions, case studies, and contextual practice questions. Evaluation of the activity shows that this training has a positive impact on increasing student self-confidence, strengthening their numerical skills, and fostering ethical awareness in decision-making as prospective educators. The results of this training encourage students to be better prepared to face the world of work and have social sensitivity as part of their civic responsibilities. This program is expected to be sustainable and become a model for developing transdisciplinary skills in preparing FKIP graduates who excel academically, ethically, and professionally.
PENGGUNAAN MODUL OPERASI HITUNG DI SD NEGERI 3 KANOMAN PANJATAN KULONPROGO PASCA COVID 19 Febriana, Rina; Hidayati, Ika Septi; Putri, Prihastini Oktasari
Gemi: Jurnal Penelitian dan Pengabdian Vol. 3 No. 2 (2024): Gemi
Publisher : Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47200/gemi.v3i2.1340

Abstract

The use of teaching aids in learning is very important because it becomes the basis for students to better understand the concept of abstract thinking. Props are certain objects that are intentionally made, collected, and arranged that are used to help instill or present mathematical concepts. One of the things about integer operations is integer subtraction. Integer math material, especially integer subtraction, needs to be taught to elementary school students, as seen after this pandemic, elementary school students have difficulty reducing integers. So we from the P2M team want to make it easier for these elementary students to use integers by using the arithmetic operations module. the concept of arithmetic operations (addition and subtraction) improves the quality of learning in terms of the use of media so that mathematics material becomes more concrete, and the implementation of training develops innovative learning
PELATIHAN KETERAMPILAN DASAR KOMPUTER DAN TEKNOLOGI INFORMASI BAGI SISWA Putri, Prihastini Oktasari; Hidayati, Ika Septi; Febriana, Rina
Gemi: Jurnal Penelitian dan Pengabdian Vol. 4 No. 1 (2024): Gemi
Publisher : Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47200/gemi.v4i1.1779

Abstract

This devotion to public is motivated by the problem of students' lack of understanding in the use and application of computers at SD Negeri 1 Plumbon. The solution offered to address the partner's problem is to implement a community service program in the form of basic computer skills and information technology training for students. The objective of this community service is to provide knowledge and basic computer skills, as well as information technology, to elementary school students. The community service activities consist of four stages: 1) Planning stage, 2) Implementation stage, 3) Assistancetraining stage, and 4) Simulation and practice stage. Through this training, it aims to provide knowledge and basic computer skills, as well as information technology.
SINEGRITAS AKADEMIKA DAN MASYARAKAT DALAM MEMBANGUN DESA BERSAMA MAHASISWA KKN REGULER UCY DI PADUKUHAN SINDET Putri, Prihastini Oktasari; Firdaus, Mustakim; Fauziah, Resvi Septiani; Khasanan, Siti Nur
Gemi: Jurnal Penelitian dan Pengabdian Vol. 4 No. 2 (2025): Gemi
Publisher : Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47200/gemi.v4i2.2409

Abstract

The Regular Community Service Program (KKN) of UCY XLIII 2024 Group 1 with the theme "Academic and Community Synergy in Village Development" is a manifestation of community service in integrating campus learning with community life. As an educational institution with awareness of its important role in national progress, UCY participates in village development efforts through the KKN Program. In its implementation, there are two types of activities: main activities and supporting activities. In the main KKN activities, students actively collaborate with the community in conducting education, socialization, and innovation activities as strategic steps in advancing the village. Additionally, students also play a role in efforts to improve economic, food, social, educational, and cultural resilience of the community, as well as creatively and independently optimizing human and natural resources. Furthermore, students are also expected to develop interpersonal skills to build partnerships, interdisciplinary team cooperation, and leadership in managing village potentials. Meanwhile, for supporting activities, students are asked to apply their knowledge according to their respective fields of study.
Co-Authors Agustina Sri Purnami Antari, Ervin Dwi BENI, BENI Dewi Retno Sari Saputro Dewi Retno Sari Saputro, Dewi Retno Erna Wati Fauziah, Resvi Septiani Fifianawati, Fifianawati Firdaus, Mustakim Hafizah Delyana, Hafizah Hema Malini, Hema Ika Septi Hidayati Intan Kusumawati Khasanan, Siti Nur Khoeriah, Siti Sifa Mardiyana Mardiyana Mardiyana Mardiyana Paiman Rina Febriana Sitorus, Siska Mariana Sri Adi Widodo Yenny Anggreini Sarumaha