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Imajiner: Jurnal Matematika dan Pendidikan Matematika
Published by Universitas PGRI Semarang
ISSN : -     EISSN : 26853892     DOI : -
Core Subject : Education,
Education Languange, Linguistic, Communication & Media Mathematics Other
Imajiner: Jurnal Matematika dan Pendidikan Matematika memiliki fokus utama pada pengembangan ilmu di ranah matematika dan pendidikan. Lingkup dari fokus utama tersebut meliputi pendidikan dan terapan.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 453 Documents
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Penerapan Pewarnaan Graf dan Metode Webster dalam Pengaturan Lampu Lalu Lintas pada Persimpangan Metro Jalan MT. Haryono Kota Semarang Safitri, Fristy Aulia; Rosyida, Isnaini
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.23894

Abstract

Penelitian ini bertujuan untuk menerapkan metode Welch-Powell pada pewarnaan graf dalam pengaturan fase lalu lintas di persimpangan Metro Kota Semarang, menentukan durasi lampu lalu lintas di persimpangan Metro dengan metode Webster, dan menganalisis galat dari perhitungan durasi lampu merah dan hijau tersebut. Metode yang digunakan adalah pewarnaan graf menggunakan algoritma Welch-Powell dan metode Webster. Hasil penelitian diperoleh pengaturan lampu lalu lintas pagi dan sore hari sebanyak 4 fase dengan fase 1 meliputi arus dari Jalan MT. Haryono (selatan) dan Jalan MT. Haryono (utara) ke selatan dengan durasi lampu hijau 57 detik dan merah 83 detik pada pagi hari serta durasi lampu hijau 72 detik dan merah 103 detik pada sore hari. Fase 2 meliputi arus dari Jalan Lamper sari dengan durasi lampu hijau 26 detik dan merah 114 detik pada pagi hari serta durasi lampu hijau 26 detik dan merah 149 detik pada sore hari. Fase 3 meliputi arus dari Jalan MT. Haryono (utara) ke barat dengan dengan durasi lampu hijau 20 detik dan merah 120 detik pada pagi hari serta durasi lampu hijau 21 detik dan merah 154 detik pada sore hari. Fase 4 meliputi arus dari Jalan Sriwijaya dengan dengan durasi lampu hijau 29 detik dan merah 111 detik pada pagi hari serta durasi lampu hijau 48 detik dan merah 127 detik pada sore hari. Hasil perhitungan galat durasi lampu lalu lintas, diperoleh perhitungan galat durasi lampu merah dan hijau cukup kecil baik pada pagi maupun sore hari.
Uji Validitas E-Book Interaktif pada Materi Sistem Persamaan Linier Dua Variabel Siswa Kelas VIII SMP Rahayu, Ratna Nur; Rahayu, Puji
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.24198

Abstract

Tujuan dari penelitian ini adalah untuk membuat E-Book Interaktif tentang topik Persamaan Linear Dua Variabel, yang cocok untuk siswa SMP kelas 8. Penelitian ini mengikuti model 4-D, yang meliputi empat tahap: Define, Design, Develop, dan Disseminate. Namun, dalam penelitian ini, proses tersebut hanya dilakukan sampai tahap Develop, dilanjutkan dengan uji validitas. Temuan penelitian menunjukkan bahwa E-Book Interaktif yang dikembangkan memenuhi kriteria validitas. Validitas media dinilai oleh ahli media, memberikan skor rata-rata 4,26, dan oleh ahli materi, memberikan skor rata-rata 4,76. Kedua skor tersebut termasuk dalam kategori sangat baik. Dengan demikian, E-Book Interaktif ini layak digunakan pada pelajaran matematika di SMP. 
Kesalahan Mahasiswa dalam Menyelesaikan Masalah Penjumlahan Vektor Secara Analitis dan Secara Grafis Berbantuan Aplikasi Geogebra Martin, Sri Novia; Nazarlin, Nazarlin
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.24812

Abstract

The purpose of this study is to describe the difficulties experienced by students when solving vector addition problems analitically and graphically. In solving problems related to vector summation, there are two ways that can be used, namely analytically and graphically. Analytically, it is to decompose vectors into their components and then look for the response. Meanwhile, graphically using the help of Geogebra and using the concept of Triangle. Then in each way analyzed the difficulties experienced by students. This research method is descriptive qualitative. Data were obtained from observation, interviews, and tests. The subject of research was 38 UNP mathematics education students. The data obtained were analyzed using Miles and Huberman's measures of data reduction, data display and conclusions. The results of the study obtained information analytically the difficulties faced by students are interpreting / illustrating problems or problems into images or symbols, choosing strategies for solving (the right formula), miscalculations, and not making answer conclusions, not checking back on the answers that have been obtained. Meanwhile, graphically using the Geogebra application the difficulty experienced is interpreting it into the form of mathematical images / symbols, making accurate measurements of vector lengths or angles and not making answer conclusions.
Pengaruh Model Pembelajaran Collaborative Problem Solving terhadap Kemampuan Pemecahan Masalah Matematis ditinjau dari Minat Belajar Jumala, Nila; Fitri, Amalia
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.23879

Abstract

The purpose of this study was to: (1) determine whether students who use the Collaborative Problem Solving learning model and students who use the conventional learning model have different abilities in solving mathematical problems; (2) determine whether students with high, medium, and low learning interests have different abilities in solving mathematical problems; and (3) determine whether the Collaborative Problem Solving model and learning interests have an interaction on students' mathematical problem solving abilities. The study employs a quantitative approach using a posttest-only control group design, which is a quasi-experimental design. All grade XI students of SMA Negeri 1 Ulujami made up the research population. Data collection was carried out through tests and questionnaires. The research instruments were descriptive questions that measured mathematical problem solving ability and questionnaires to assess students' learning interests. The two-way analysis of variance (two-way ANOVA) method was used to evaluate the hypotheses. According to the study's findings, it was discovered that: (1) students who received the Collaborative Problem Solving learning model performed differently in solving mathematical problems than students who received the conventional learning model; (2) students with high, medium, or low learning interest performed differently in solving mathematical problems; and (3) there was no interaction between the Collaborative Problem Solving model and learning interest.
Implementasi Logika Fuzzy Metode Mamdani Pada Prediksi Tingkat Kesehatan Mental Mahasiswa Rumpun Matematika Angkatan 2024 di Universitas Negeri Semarang Dewi, Nuraliftsa Maharani; Rosyida, Isnaini
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.24154

Abstract

Kesehatan mental merupakan aspek penting dalam menunjang prestasi akademik, motivasi belajar, dan kesejahteraan diri mahasiswa. Kesehatan mental setiap mahasiswa tidak dapat diperkirakan secara pasti, mengingat banyaknya faktor yang mempengaruhi, seperti tingkat spiritualitas, dukungan keluarga, kualitas pertemanan, dan stres akademik yang berbeda-beda. Maka dari itu, penelitian ini bertujuan untuk memprediksi tingkat kesehatan mental mahasiswa dengan mengimplementasikan logika fuzzy metode Mamdani sebagai sistem analisis. Terdapat empat variabel input yang digunakan, yaitu tingkat spiritualitas, dukungan keluarga, kualitas pertemanan, dan stress akademik. Sementara itu, variabel output yang digunakan yaitu variabel tingkat kesehatan mental. Proses perolehan data dilakukan dengan cara menyebarkan angket kepada calon responden. Penelitian ini dilakukan dengan bantuan platform Google Colab karena terdapat library untuk membuat sistem prediksi. Hasil penelitian diperoleh nilai MAPE sebesar 20% yang berarti memiliki akurasi kebenaran sebesar 80%. Hal ini menunjukkan bahwa penerapan logika fuzzy metode Mamdani cukup efektif dalam memprediksi tingkat kesehatan mental mahasiswa rumpun matematika angkatan 2024 di Universitas Negeri Semarang.
Pengembangan Media Pembelajaran Interaktif dengan Google Sites Pada Materi Teorema Pythagoras Untuk Meningkatkan Literasi Matematika Siswa Kelas VIII SMP fajri, arganati nurul; ningrum, Heni Sulistya
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.24375

Abstract

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Efektivitas Pembelajaran Project Based Learning (PJBL) Berbantuan App Kahoot terhadap Kemampuan Matematis Siswa SMP Ayudyaningtyas, Wulan; Purwosetiyono, FX Didik; Zuhri, M Saifuddin
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.19763

Abstract

This research aims to evaluate the effectiveness of the Project Based Learning (PjBL) model supported by the Kahoot application in improving the mathematical abilities of junior high school students. The research method used is Quasi-Experimental with a Posttest Only Control Design. The study population consists of eighth-grade students at SMP N 1 Lasem, divided into two classes as samples: the experimental class using Kahoot-assisted PjBL and the control class using conventional teaching methods. The sampling was done using cluster random sampling techniques. Data collection techniques include documentation, observation to monitor student engagement during the learning process, and essay-type post-tests to measure students' mathematical abilities. The results showed that the experimental class using Kahoot-assisted PjBL performed better than the students using conventional teaching methods. There is an effect of student engagement using Kahoot-assisted PjBL. The mathematical abilities of students using the Project Based Learning (PjBL) model assisted by the Kahoot app achieved mastery. Implementing the PjBL model supported by the Kahoot application can enhance students' mathematical ability skills in mathematics learning.
Kemampuan Translasi Representasi Verbal ke Simbolik ditinjau dari Adversity Quotient (AQ) Tipe Climber dan Camper Ramadhan, Fista Cahyani; Patmawati, Hetty; Mulyani, Eva
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.23903

Abstract

This study aims to analyze the ability to translate verbal representations into symbolic representations in terms of adversity quotient (AQ) types climber and camper. This study uses a qualitative approach with a descriptive method. Data collection techniques in this study were carried out through the distribution of ARP questionnaires, tests of the ability to translate verbal representations into symbolic representations, and interviews. The instruments used were the ARP questionnaire and a test of the ability to translate verbal representations into symbolic representations of single-variable linear inequalities. The subjects of this study included two eighth-grade students from SMP Negeri 15 Tasikmalaya. Data analysis was conducted using several techniques, including data reduction, data presentation, and conclusion drawing. The results of the study indicate that students with climber-type AQ are able to meet all indicators of verbal-to-symbolic representation translation ability, namely: identifying the information contained in the source representation; identifying what is being asked from the source representation; determining the strategy or initial steps for forming the source representation based on the target representation; forming the requested target representation as the solution to the target representation; and checking the consistency of the target representation with the source representation. Meanwhile, students with AQ type camper were able to meet four out of five indicators, with the unmet indicator being checking the consistency of the target representation with the source representation.
Penerapan Model Inquiry Learning berbantuan Media Auvipow terhadap Pemahaman Konsep Matematika pada Siswa SD Handayani, Syahruni Fariha; Riswari, Lovika Ardana; Santoso, Denni Agung
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.24280

Abstract

The background of this study is based on the low level of students' understanding of mathematical concepts, which is indicated by their difficulty in connecting concepts with applications in everyday life. This study aims to determine how effective the Inquiry Learning model using Auvipow media is in improving students' understanding of mathematical concepts in elementary school. This study uses a quantitative approach with a pre-experimental design called one group pretest-posttest. The subjects of the study were fifth-grade students of SDN 2 Undaan Lor. The research sampling technique was carried out using total sampling. The tool used was a concept understanding test in the form of essay questions. The results of the study showed an increase in the average score between the pretest and posttest after the application of the Inquiry Learning model with the help of Auvipow media. While data analysis used data normality tests and paired t-tests to test the research hypothesis. The data analysis technique used the N- Gain test and the Paired sample t-test. The results showed that the average score obtained by fifth-grade students in the pretest was 53.61 and the posttest was 76.33. The results of data analysis using SPSS Statistics 25 obtained an N-Gain score of 0.7500, which is categorized as high. Meanwhile, the Paired sample t-test showed a sig. (2-tailed) value of 0.000 0.05, meaning there is a difference in the average. Therefore, it can be concluded that the Inquiry Learning model with the help of Auvipow media is effective in improving students' understanding of mathematical concepts in elementary school.
Pengembangan Modul Pembelajaran Matematika Berbasis Self Regulated Learning Untuk Meningkatkan Kemampuan Berpikir Kritis Siswa UPTD SMP Negeri 1 Mandrehe Barat Zebua, Syukur Marno Life; Mendrofa, Netti Kariani; Mendrofa, Ratna Natalia; Telaumbanua, Yakin Niat
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.24613

Abstract

Students' critical thinking skills in mathematics learning are still low and need to be addressed immediately, particularly at UPTD SMP Negeri 1 Mandrehe Barat. This is influenced by the limited availability of learning materials. As a solution, a Self Regulated Learning (SRL)-based module was developed to encourage independent, reflective, and gradual learning to enhance students' critical thinking skills. This study aims to develop a mathematics learning module based on SRL that is valid, practical, and effective in improving students’ critical thinking skills. This research is a development study using the Plomp model, which consists of three phases: preliminary investigation, prototyping phase, and assessment phase. The instruments used in this research include learning outcome tests, validation questionnaires, and student and teacher response questionnaires. The types of data used in this study are qualitative and quantitative. Qualitative data consist of comments and suggestions from validators regarding the developed module. Quantitative data consist of validation scores, student and teacher responses, and critical thinking test results after using the developed learning material. The results showed that the developed module was highly valid, with validation scores from subject matter expert I at 92%, expert II at 93%, language expert at 82.5%, and design expert at 90%. The module was also considered highly practical, with student response at 90.4% and teacher response at 95%. Furthermore, the module was effective in improving students’ mathematical problem-solving skills, with an average score of 76.34 (moderate category) and classical completeness of 88.46% (very effective category). It can be concluded that the developed SRL-based learning module meets the objectives of the study.

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