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KADIKMA
Published by Universitas Jember
ISSN : 20850662     EISSN : 26863243     DOI : -
Core Subject : Education,
Mathematics
KadikmA (p-ISSN: 2085-0662 dan e-ISSN: 2686-3243) adalah jurnal nasional bidang Matematika dan Pendidikan Matematika yang diterbitkan oleh Program Studi Pendidikan Matematika, FKIP, Universitas Jember. Kadikma terbit 3 kali dalam setahun pada bulan April, Agustus dan Desember. Jurnal Matematika dan Pendidikan Matematika (Kadikma) berfokus pada penelitian matematika murni, matematika terapan, dan pendidikan matematika melalui artikel yang relevan. Jurnal Matematika dan Pendidikan Matematika (Kadikma) menyambut baik setiap artikel tentang penelitian matematika murni, penelitian matematika terapan, penelitian pendidikan matematika di dalam kelas yang relevan, mengevaluasi dan melaporkan praktik pendidikan guru dalam pembelajaran matematika, meninjau masalah topikal dan melaporkan keberhasilan dalam pendidikan matematika.
Arjuna Subject : Matematika - Matematika Terapan
Articles 539 Documents
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Pengembangan LKPD Berbasis Pendidikan Karakter Dan Nilai – Nilai Islami Pada Materi SPLDV Kelas VIII Pratiwi, Yola Novia; Ah, Nurul Imamah; Rhomdani, Rohmad Wahid; Agustina, Lady
Kadikma Vol 15 No 2 (2024): Agustus 2024
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v15i2.49636

Abstract

The aim of this research is to produce a product in the form of LKPD based on character education and Islamic values ​​which will help students more easily understand the content of the material. The method used in this research is the Research and Development (R&D) development method with the 4D development model. The results of this research are reviewed from the validity and practicality of the product. Product validity is obtained from the average score given by 3 validators on the validation questionnaire of 83.38 and is included in the interval > 80 and is categorized as very valid. Meanwhile, product practicality was obtained from the average score given by respondents through a small-scale trial stage with a total of 6 respondents who obtained a score of 66.2 and fell into the interval 60 - 79 and were categorized as practical. Meanwhile, a large-scale trial with 31 respondents obtained a score of 81 and was included in the interval > 80 and was categorized as very practical. Based on this, it can be concluded that the product that has been developed by researchers in the form of LKPD is very valid, very practical, and in accordance with students' needs
PERAMALAN HARGA SAHAM PT. BANK RAKYAT INDONESIA (PERSERO) TBK MENGGUNAKAN METODE AUTO REGRESSIVE INTEGRATED MOVING AVERAGE (ARIMA) Ro'ifah, Miftahur; Fatimah, Fita; Sulisawati, Dwi Noviani
Kadikma Vol 15 No 1: April 2024
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v15i1.53679

Abstract

The stock price movements are important in the stock market because they provide information about company performance, market sentiment and other economic factors. This makes stock price movements important to monitored by investors, analysts and other market participants to make the right investment decisions when to buy or sell these stocks. The aims of the research is to predict the stock price of PT. Bank Rakyat Indonesia (Persero) Tbk using the Auto Regressive Integrated Moving Average (ARIMA) method. The ARIMA method is used to predict future values based on historical data. The data used is the stock price of PT. Bank Rakyat Indonesia (Persero) Tbk from 3 July 2023 to 28 March 2024 that obtained from the Yahoo Finance website. There are four steps that will be used. First, explore the data to get a general description of the used data. Second, identify data stationarity. Third, identify the ARIMA model that will be used. Fourth, predict the stock price of PT. Bank Rakyat Indonesia (Persero) for April 2024 period. The result is the most optimal model for predicting stoke prices of PT. Bank Rakyat Indonesia (Persero) in the April 2024 period is ARIMA (1,1,1).
IDENTIFIKASI PERSEPSI LITERASI MATEMATIKA GURU SMP DI YOGYAKARTA: TANTANGAN DAN PELUANG Melissa, Margaretha Madha; Niluh Sulistyani; Kintan Limiansih
Kadikma Vol. 16 No. 1 (2025): APRIL, 2025
Publisher : Department of Mathematics Education , University of Jember

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Abstract

Hasil PISA menunjukkan bahwa skor literasi matematika siswa Indonesia secara konsisten berada di bawah rata-rata negara peserta OECD, sehingga perlu perhatian lebih dari guru dan siswa. Tujuan dari penelitian ini untuk mendeskripsikan persepsi guru terhadap literasi matematika. Penelitian ini menggunakan metode survei dengan melibatkan 181 guru matematika SMP di Yogyakarta, dengan teknik voluntary sampling. Instrumen angket digunakan untuk mengetahui pemahaman guru dan pentingnya literasi matematika, serta kualitas literasi matematika siswa. Kesimpulan penelitian ini yaitu 1) sebanyak 71% guru telah mengenal konsep literasi matematika, namun 39% guru masih merasa ragu-ragu atau belum mengenal; 95% guru setuju bahwa literasi matematika penting dikembangkan di sekolah; hanya 38% guru yang mengetahui kualitas literasi matematika siswa. 2) Tantangan dalam pengembangan literasi matematika dari faktor guru adalah pemahaman dan pentingnya pengembangan literasi matematika, serta banyak guru belum mengetahui kualitas literasi matematika siswa, kesulitan dalam mengklasifikasikan konten literasi matematika. Peluang untuk mengatasinya melalui upaya pemberian contoh pembelajaran literasi dari pemerintah, penggunaan soal diagnostik seperti AKM, integrasi literasi matematika dalam berbagai mata pelajaran, penerapan pembelajaran berbasis masalah dan proyek, lingkungan belajar yang mendukung, pemodelan pemecahan masalah, pembelajaran kontekstual, inkuiri, soal berbasis budaya, dan pemanfaatan media pembelajaran interaktif.
Analisis Pengaruh Metode Mathemagic In Joyful Learning Terhadap Hasil Belajar Kognitif Siswa Berbasis Soal HOTS: Analisis Pengaruh Metode Mathemagic In Joyful Learning Terhadap Hasil Belajar Kognitif Siswa Berbasis Soal HOTS Qoyyimah, Annisaul; Maswar, Maswar; Saiful, Saiful
Kadikma Vol. 16 No. 1 (2025): APRIL, 2025
Publisher : Department of Mathematics Education , University of Jember

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Abstract

This study aims to analyze the effect of applying the mathemagic in the joyful learning method on the cognitive learning outcomes of junior high school students based on higher-order thinking skills (HOTS). The research design used a pre-experimental One-Group Pretest-Posttest with a sample of 30 students of class VII G of SMPN 1 Situbondo. The Sample was selected by purposive sampling from a population of 155 students. The research instrument was a HOTS-based test with 10 essay questions that had been validated using Pearson's product-moment correlation and tested for reliability with Cronbach's alpha. Data were analyzed using descriptive statistics and inferential statistics in the form of Pearson product-moment correlation, simple linear regression, and t-test. The results showed a very strong relationship between the mathemagic method and students' cognitive learning outcomes (R = 0.974). The relationship between the two variables is a causal relationship with a contribution of 94.8%. The t-test proves that the contribution of the influence is significant, with a t-count value = 22.707 > t-table = 1.701, and a sig.t value of 0.000 < 0.05. Thus, it is proven that the application of mathemagic in the joyful learning method has a significant effect on the cognitive learning outcomes of junior high school students based on HOTS questions Keywords: Mathemagic Method, Joyful Learning, Cognitive Learning Outcomes, HOTS
UTILIZATION OF LINGO APPLICATION IN OPTIMIZING SNACKS USING LINEAR PROGRAM: PEMANFAATAN APLIKASI LINGO DALAM OPTIMALISASI MAKANAN RINGAN MENGGUNAKAN PROGRAM LINEAR Djeni, Darwin; Waluyo, Eko; Hasanah, Husnul
Kadikma Vol. 15 No. 3 (2024): Desember 2024
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v15i3.53710

Abstract

Micro-enterprises in the snack food sector often face various challenges, including limited raw materials, high production costs, and fluctuating market demand. This study aims to optimize the production of snack foods such as sausage corndogs, cheese corndogs, and chocolate banana rolls (piscok) through the application of linear programming using the LINGO software. The research employs a quantitative descriptive approach with field observations conducted on the researcher’s own business located in Bulang Village, Probolinggo Regency. A mathematical model was developed by taking into account real-world constraints such as production capacity and raw material availability, with the goal of maximizing profit. The analysis using LINGO indicates that the optimal production combination consists of 20 sausage corndogs, 5 cheese corndogs, and 20 piscok per day, resulting in a maximum daily profit of IDR 75,000. These findings suggest that the use of LINGO software can significantly assist micro-entrepreneurs in managing resources more efficiently and enhancing the profitability of snack food businesses.
Peningkatan Hasil Belajar Materi Statistika Siswa Kelas X melalui Model Problem Based Learning dengan Pendekatan Culturally Responsive Teaching Berbasis Google Sites Agustin, Virgalita; Christine Wulandari Suryaningrum
Kadikma Vol. 16 No. 2 (2025): Agustus 2025
Publisher : Department of Mathematics Education , University of Jember

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Abstract

Penelitian ini bertujuan untuk mengevaluasi efektivitas penerapan model Problem Based Learning (PBL) yang terintegrasi dengan pendekatan Culturally Responsive Teaching (CRT) berbasis Google Sites dalam meningkatkan hasil belajar matematika pada materi statistika. Jenis penelitian yang dilakukan yaitu Penelitian Tindakan Kelas (PTK) yang dilaksanakan dalam dua siklus. Tiap siklus terdiri dari 4 tahap yaitu perencanaan, pelaksanaan tindakan, observasi, serta analisis refleksi. Penelitian ini bertempat di SMA Negeri 1 Arjasa dengan subjek penelitian sebanyak 35 peserta didik. Kesimpulan yang dapat diperoleh dari penelitian ini yaitu penerapan model pembelajaran Problem Based Learning (PBL) terintegrasi pendekatan Culturally Responsive Teaching (CRT) berbasis google sites efektif dalam meningkatkan hasil belajar matematika peserta didik kelas X-4 SMA Negeri 1 Arjasa Semester Genap Tahun Pembelajaran 2024/2025.
Upaya Peningkatan Hasil Belajar Dengan Pendekatan CRT dan Model Cooperative Learning Materi Staistika Kelas X Hanuf Bella Irawati, Hanuf Bella Irawati; Hana Puspita Eka Firdaus
Kadikma Vol. 16 No. 2 (2025): Agustus 2025
Publisher : Department of Mathematics Education , University of Jember

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Abstract

Tujuan penelitian ini adalah untuk meningkatkan hasil belajar matematika siswa kelas X dengan menerapkan pendekatan Culturally Responsive Teaching (CRT) dan model Cooperative Learning pada materi statistika. Pelaksanaan Penelitian Tindakan Kelas (PTK) dibagi menjadi 2 siklus, dengan setiap siklus melaksanakan 4 tahap yaitu tahap perencanaan, tahap pelaksanaan, tahap pengamatan, dan tahap refleksi. Subjek dalam penelitian ini adalah siswa kelas X.3 SMAN Arjasa tahun ajaran 2024/2025. Hasil penelitian ini menunjukkan bahwa hasil belajar siswa mengalami peningkatan dengan standar ketuntasan ≥70. Pada tahap pra siklus persentase ketuntasan sebesar 61% dan nilai rata-rata hasil belajar sebesar 67,65, kemudian dilanjutkan pada tahap siklus I dengan presentase ketuntasan 75% dan nilai rata-rata hasil belajar 71,19, dan pada tahap siklus II memperoleh presentase ketuntasan 86% dan nilai rata-rata hasil belajar 77,42. Dengan demikian dapat disimpulkan bahwa penelitian ini berhasil dan penerapan pendekatan Culturally Responsive Teaching (CRT) dan model Cooperative Learning dapat meningkatkan hasil belajar siswa kelas X SMAN Arjasa pada mata pelajaran statistika. Keywords: Culturally Responsive Teaching(CRT); Cooperative Learning; Hasil Belajar; Statistika
ANALISIS KONEKSI MATEMATIS DAN BERPIKIR KRITIS SISWA KOGNITIF TINGGI PADA MASALAH MATEMATIKA HOTS Rismawati, Melinda; Andri, Andri; B Rindiani, Anita; Wahyudi
Kadikma Vol. 16 No. 2 (2025): Agustus 2025
Publisher : Department of Mathematics Education , University of Jember

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Abstract

This study aims to describe students' mathematical connections and critical thinking in solving math problems based on HOTS questions in class X SMA Negeri 4 Sintang. The method used in this research is a descriptive qualitative approach. Data collection techniques used observation, interviews, and documentation techniques. The data analysis techniques used in this study are data collection, data reduction, data presentation, and conclusion drawing. Based on the results of data analysis, the structure of mathematical connections and critical thinking of students in solving HOTS problems in the low category, the most mistakes made by students in the indicators of mathematical connections, namely using the connection between mathematical ideas and understanding how mathematical ideas are connected to solve problems. In critical thinking, namely forming basic skills, providing further explanation, drawing conclusions on HOTS questions, only some students can work at this stage. The conclusions of this study are: (1) in question 1 the subject fulfills the indicators of mathematical connection and critical thinking to solve the problem, (2) in question 2 the subject SAL can determine the solution correctly (3) in question 3 the subject SAL answers less precisely.
MODEL PREDIKSI LABA BERSIH BERDASARKAN BEBAN OPERASIONAL MENGGUNAKAN ARIMAX PADA PT KINO INDONESIA TBK. Resti, Nalsa; Ilmiyah, Nur Fadilatul; Renaningtyas, Della
Kadikma Vol. 16 No. 2 (2025): Agustus 2025
Publisher : Department of Mathematics Education , University of Jember

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Abstract

Penelitian ini menyoroti pentingnya strategi perencanaan keuangan berbasis data dalam menghadapi fluktuasi laba bersih PT Kino Indonesia Tbk, dengan peramalan sebagai alat utama untuk memahami pengaruh beban operasional terhadap kinerja laba bersih dari waktu ke waktu. Tujuan dari penelitian ini adalah untuk meramalkan laba bersih PT Kino Indonesia Tbk berdasarkan beban operasional dengan menggunakan metode ARIMAX (Autoregressive Integrated Moving Average with Exogenous Variables), untuk membantu perusahaan dalam menyusun strategi keuangan jangka menengah yang lebih terarah dan berbasis data. Penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian deskriptif-prediktif. Data yang digunakan merupakan data sekunder berupa laporan keuangan triwulanan PT Kino Indonesia Tbk periode 2018 hingga 2023. Variabel yang dianalisis terdiri dari laba bersih sebagai variabel dependen dan beban operasional sebagai variabel eksogen. Pemilihan model ARIMAX dilakukan melalui tahapan identifikasi data, uji stasioneritas, estimasi parameter, dan uji diagnostik. Model terbaik ditentukan berdasarkan nilai AIC, SBC, dan uji Ljung-Box. Akurasi model diukur menggunakan nilai Mean Absolute Percentage Error (MAPE). Hasil analisis menunjukkan bahwa model ARIMAX(1,0,0) merupakan model terbaik untuk meramalkan laba bersih berdasarkan beban operasional. Prediksi laba bersih periode 2024 hingga 2028 menunjukkan tren peningkatan meskipun terdapat fluktuasi antar kuartal. Nilai MAPE sebesar 8,00455698% menunjukkan tingkat akurasi yang sangat tinggi

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