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All Journal AlphaMath: Journal of Mathematics Education Union: Jurnal Ilmiah Pendidikan Matematika Wacana Akademika : Majalah Ilmiah Kependidikan Academy of Education Journal Intersections: Jurnal Pendidikan matematika dan matematika PROFICIO: Jurnal Pengabdian Masyarakat 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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UPAYA MENINGKATKAN MOTIVASI DAN HASIL BELAJAR MATEMATIKA MELALUI MODEL PEMBELAJARAN TIPE NUMBERED HEADS TOGHETHER SISWA KELAS VIII SMP N 1 ALIAN Prihastini Oktasari Putri; Agustina Sri Purnami
UNION: Jurnal Ilmiah Pendidikan Matematika Vol 2 No 2 (2014)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (568.82 KB) | DOI: 10.30738/.v2i2.70

Abstract

Theaimof thisresearchistoknowtheimprovingstudent’smotivation andtheoutcome inthefirstsemesterof2013/2014ofstudentVIII gradein SMPN1Alian,Kebumen usedcooperativelearning of Numbered Heads Together (NHT). This research is Classroom Action Research (CAR) conducted in two cycle. This research applied action researchwithcollaborativelearning,istheresearchercooperateswith teacher.The subjects of this research is students of class VIII D SMP N Alian Kebumen totaling 32 students. Data collection techniques in this research uses observation, questionnaires, and tests. Theresultof thisresearchcanbeconcludingasNumbered HeadsTogether(NHT)canimprovemotivation and thestudent’s outcome of study in SMP N 1 Alian, Kebumen. Theusingof cooperative learningtypeNumberedHeadsTogether(NHT)andtheresultsof the studyingisimprovedusedinVIIIgradestudentof SMPN1Alian, Kebumen.
PENERAPAN MODEL PEMBELAJARAN MAKE A MATH UNTUK MENINGKATKAN KEAKTIFAN BELAJAR SISWAA PADA MATA PELAJARAN MATEMATIKA Prihastini Oktasari Putri
Intersections Vol 5 No 1 (2020): Intersections : Jurnal Pendidikan Matematika dan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47200/intersections.v5i1.511

Abstract

This study aims to determine whether applying the Make A Math cooperative learning model can increase student learning activeness in mathematics. The type of research used is Classroom Action Research (PTK). This Classroom Action Research was carried out in two cycles, each of which included planning, action, observation and reflection. The sample in this study were all class VIIA students of SMP Negeri 7 Kebumen in the academic year 2018/2019, totaling 24 students. The instruments used in this study were observation, documentation and questionnaires.Based on the results of the study, it was concluded that the application of the Make a math type of cooperative learning model can increase student learning activeness in mathematics class VII SMP Negeri 7 Kebumen. The increase in student learning activeness can be seen in the questionnaire. Based on the questionnaire of student learning activeness using the Make A Type cooperative learning model, there was an increase from pre-cycle by 56.71% in the low category, increasing in the first cycle to 67.03% in the moderate category and increasing again in the second cycle, namely by 81.04%
IMPLEMENTASI MODEL PEMBELAJARAN TEAM GAME TOURNAMENT(TGT) UNTUK MENINGKATKAN AKTIFITAS BELAJAR SISWA Prihastini Oktasari Putri; Erna Wati
Intersections Vol 5 No 1 (2020): Intersections : Jurnal Pendidikan Matematika dan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47200/intersections.v5i1.514

Abstract

This study aims to: (1) determine the responses of students in learning mathematics with a cooperative model type Team Game Tournament (TGT). (2) determine whether using the cooperative model type Team Game Tournament (TGT) can improve students' mathematics learning activities. 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 questionnaires. Based on the results of the study, it was concluded that: (1) The fifth grade students of SD Negeri 1 Plumbon gave a positive response to the implementation of learning mathematics using the Team Game Tournament (TGT) cooperative model. (2) the use of the Team Game Tournament (TGT) type cooperative model can increase student learning activities in the fifth grade mathematics subject of SD Negeri 1 Plumbon. This increase can be seen in the results of the observation sheet and questionnaire. Based on the observation sheet, it was found that the average percentage increase in pre-cycle was 36.97% to 61.45% in cycle I and 72.39% in cycle II. Meanwhile, based on the student learning activity questionnaire using the cooperative type Team Game Tournament (TGT) model, it also increased from the pre-cycle by 61.97%, increased to 74.88% in cycle I and increased again in cycle II which was 80.20%.
Penerapan Model Pembelajaran Kooperatif Tipe Make A Math untuk Meningkatkan Hasil Belajar Siswa Prihastini Oktasari Putri
Intersections Vol 5 No 2 (2020): Intersections : Jurnal Pendidikan Matematika dan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47200/intersections.v5i2.550

Abstract

This study aims to determine whether applying the Make A Math type of cooperative learning model can improve student learning outcomes in mathematics. The type of research used is Classroom Action Research. The sample in this study were all students of class VIIC SMP Negeri 7 Kebumen, totaling 24 students. The instruments used in this study were observation, documentation and tests Based on the results of the study, it was concluded that the application of the Make A Math type of cooperative learning model could improve student learning outcomes in mathematics class VIIC at SMP Negeri 7 Kebumen. The increase in student learning outcomes can be shown in the results of the final cycle test after applying the Make A Math type of cooperative learning model, the class average score was obtained with the results in the pre-cycle of 57.70; cycle I amounted to 67.08 and cycle II amounted to 78.95. With a percentage of completeness in the prasilkus of 33.33%, in the first cycle as many as 11 students completed with a percentage of 45.83% and in the second cycle there were 18 students who completed with a percentage of 75%
PENINGKATKAN MINAT BELAJAR MATEMATIKA SISWA KELAS V SD NEGERI PREMBULAN DENGAN MODEL PEMBELAJARAN KOOPERATIF TIPE GROUP INVESTIGATION (GI) Ika Septi Hidayati; Prihastini Oktasari Putri; Yenny Anggreini Sarumaha
Intersections Vol 6 No 2 (2021): Intersections : Jurnal Pendidikan Matematika dan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47200/intersections.v6i2.1111

Abstract

The purpose of this study was to determine the appropriate application of the GI Type Cooperative learning model in order to increase the learning interest of the fifth grade students of SD Negeri Prembulan. The results of this study indicate that: (1) In general, the application of the appropriate GI learning model is effective in increasing interest in learning mathematics.
PEMANFAATAN ALAT PERAGA BATANG NAPIER DALAM PEMBELAJARAN OPERASI PERKALIAN SEBAGAI UPAYA MENINGKATKAN HASIL BELAJAR MATEMATIKA Prihastini Oktasari Putri
Academy of Education Journal Vol 10 No 01 (2019): Academy of Education Journal
Publisher : Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1020.494 KB) | DOI: 10.47200/aoej.v10i01.269

Abstract

This study aims to determine whether using napier rods can improve student mathematics learning outcomes. The method used in this study is quasi-experimental. The type of research isor Classroom Action ResearchClassroom Action Research (CAR)(CAR). The sample in this study were all students of class IV SD 2 Wadasmalang in the 2018 academic year 2018 as many as 24 students. The instrument used in this study was a student achievement test. Based on the results of the study, it was concluded that the use of napier rod props can improve student learning outcomes in mathematics class IV at SD Negeri 2 Wadasmalang. This can be shown at the end of the cycle test results turned out to be obtained a significant increase in value, meaning that the process of learning mathematics by using the napier rod props the average value of the class has increased with the results on pre-cycle of 51.67; the first cycle was 66.67 and the second cycle was 78.89. With the percentage of completeness in pre-cycle of 25%, the first cycle of 66.67% and the second cycle of 83.34%.
The Ethnomahematics Exploration in the Traditional Game of Sipak Rago Rina Febriana; Prihastini Oktasari Putri; Ika Septi Hidayati
Edumatika : Jurnal Riset Pendidikan Matematika Vol. 5 No. 1 (2022): May 2022, Edumatika : Jurnal Riset Pendidikan Matematika
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan IAIN Kerinci

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32939/ejrpm.v5i1.1306

Abstract

Education and culture cannot be separated in daily life. Ethnomathematics exists to bridge the gap between culture and education, especially in mathematics. Humans are unaware of activities that use basic mathematical concepts and ideas like counting, measuring (length, area, volume, and weight), number construction, games, and buying-selling activities. This study examines and analyzes the Minangkabau traditional games in the scope of geometry. This research is exploratory research with an ethnographic approach. The subjects of this study were 6 players of the Sipak Rago game. The data was collected through observation, documentation, and interview to find mathematical concepts in the Sipak Rago game. Based on the research, there are mathematical concepts in the Sipak Rago game like the concept of circle elements, circle circumference formula, circle area formula, and angle on a circle.
Problematika dan Analisis Kecurangan untuk Menurunkan Similarity yang Tidak Terdeteksi oleh similarity tool Prihastini Oktasari Putri; Sri Adi Widodo; Ika Septi Hidayati
WACANA AKADEMIKA: Majalah Ilmiah Kependidikan Vol 7 No 1 (2023): Mei 2023
Publisher : Universitas Sarjanawiyata Tamansiswa

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

Abstract

This research aims to describe the problem of cheating in reducing similarity using Turnitin software in writing scientific articles, as well as the factors causing cheating problems carried out by students. The research method used is qualitative with a case study approach. Data collection techniques include observation, documentation, and interviews with students taking the scientific paper course. The sample consists of students taking the scientific paper course with focus on research mathematics in Open University, Study Program X, using purposive sampling technique. The research findings indicate, there are cheating techniques used to reduce similarity that are undetectable by Turnitin: (1) adjusting spaces in a text that is too large or too small, (2) converting text files into images, (3) adding specific letters to the manuscript, (4) inserting specific small-sized numbers that are almost invisible, (5) intentionally making typing errors, and (6) adding specific symbols to the scientific article manuscript.
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
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 khusnul khotimah Mardiyana Mardiyana Marselina Ayu Lestari Nida Hashifatun Nisaa Paiman Rina Febriana Sitorus, Siska Mariana Sri Adi Widodo Yenny Anggreini Sarumaha